cmd: upgrade to ffcli v3

None of the breaking changes from v2 to v3 are relevant to us.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>

cmd/speedtest/speedtest.go

@@ -23,7 +23,7 @@ import (
 	"text/tabwriter"
 	"time"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/net/speedtest"
 )
 

cmd/tailscale/cli/bugreport.go

@@ -9,7 +9,7 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 )
 

cmd/tailscale/cli/cert.go

@@ -15,7 +15,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/atomicfile"
 	"tailscale.com/client/tailscale"
 )

cmd/tailscale/cli/cli.go

@@ -23,7 +23,7 @@ import (
 	"syscall"
 	"text/tabwriter"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/paths"

cmd/tailscale/cli/debug.go

@@ -16,7 +16,7 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/paths"

cmd/tailscale/cli/down.go

@@ -10,7 +10,7 @@ import (
 	"log"
 	"os"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 )

cmd/tailscale/cli/file.go

@@ -23,7 +23,7 @@ import (
 	"time"
 	"unicode/utf8"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"golang.org/x/time/rate"
 	"inet.af/netaddr"
 	"tailscale.com/client/tailscale"

cmd/tailscale/cli/ip.go

@@ -10,7 +10,7 @@ import (
 	"flag"
 	"fmt"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"inet.af/netaddr"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn/ipnstate"

cmd/tailscale/cli/logout.go

@@ -9,7 +9,7 @@ import (
 	"log"
 	"strings"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 )
 

cmd/tailscale/cli/netcheck.go

@@ -18,7 +18,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/net/netcheck"

cmd/tailscale/cli/ping.go

@@ -14,7 +14,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/ipnstate"

cmd/tailscale/cli/status.go

@@ -15,7 +15,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"github.com/toqueteos/webbrowser"
 	"inet.af/netaddr"
 	"tailscale.com/client/tailscale"

cmd/tailscale/cli/up.go

@@ -17,7 +17,7 @@ import (
 	"sync"
 
 	shellquote "github.com/kballard/go-shellquote"
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"inet.af/netaddr"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"

cmd/tailscale/cli/version.go

@@ -10,7 +10,7 @@ import (
 	"fmt"
 	"log"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/version"
 )

cmd/tailscale/cli/web.go

@@ -23,7 +23,7 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/peterbourgon/ff/v2/ffcli"
+	"github.com/peterbourgon/ff/v3/ffcli"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/ipn"
 	"tailscale.com/tailcfg"

cmd/tailscale/depaware.txt

@@ -5,8 +5,8 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
    W 💣 github.com/alexbrainman/sspi/negotiate                       from tailscale.com/net/tshttpproxy
         github.com/kballard/go-shellquote                            from tailscale.com/cmd/tailscale/cli
      💣 github.com/mitchellh/go-ps                                   from tailscale.com/cmd/tailscale/cli+
-        github.com/peterbourgon/ff/v2                                from github.com/peterbourgon/ff/v2/ffcli
+        github.com/peterbourgon/ff/v3                                from github.com/peterbourgon/ff/v3/ffcli
-        github.com/peterbourgon/ff/v2/ffcli                          from tailscale.com/cmd/tailscale/cli
+        github.com/peterbourgon/ff/v3/ffcli                          from tailscale.com/cmd/tailscale/cli
         github.com/tailscale/goupnp                                  from github.com/tailscale/goupnp/dcps/internetgateway2+
         github.com/tailscale/goupnp/dcps/internetgateway2            from tailscale.com/net/portmapper
         github.com/tailscale/goupnp/httpu                            from github.com/tailscale/goupnp+
@@ -136,7 +136,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
         encoding/xml                                                 from tailscale.com/cmd/tailscale/cli+
         errors                                                       from bufio+
         expvar                                                       from tailscale.com/derp+
-        flag                                                         from github.com/peterbourgon/ff/v2+
+        flag                                                         from github.com/peterbourgon/ff/v3+
         fmt                                                          from compress/flate+
         hash                                                         from crypto+
         hash/crc32                                                   from compress/gzip+
@@ -177,7 +177,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
         sync                                                         from compress/flate+
         sync/atomic                                                  from context+
         syscall                                                      from crypto/rand+
-        text/tabwriter                                               from github.com/peterbourgon/ff/v2/ffcli+
+        text/tabwriter                                               from github.com/peterbourgon/ff/v3/ffcli+
         text/template                                                from html/template
         text/template/parse                                          from html/template+
         time                                                         from compress/gzip+

go.mod

@@ -27,7 +27,7 @@ require (
 	github.com/miekg/dns v1.1.42
 	github.com/mitchellh/go-ps v1.0.0
 	github.com/pborman/getopt v1.1.0
-	github.com/peterbourgon/ff/v2 v2.0.0
+	github.com/peterbourgon/ff/v3 v3.1.0
 	github.com/pkg/sftp v1.13.0
 	github.com/tailscale/certstore v0.0.0-20210528134328-066c94b793d3
 	github.com/tailscale/depaware v0.0.0-20201214215404-77d1e9757027

go.sum

@@ -465,9 +465,9 @@ github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/9
 github.com/pelletier/go-toml v1.6.0/go.mod h1:5N711Q9dKgbdkxHL+MEfF31hpT7l0S0s/t2kKREewys=
 github.com/pelletier/go-toml v1.8.1 h1:1Nf83orprkJyknT6h7zbuEGUEjcyVlCxSUGTENmNCRM=
 github.com/pelletier/go-toml v1.8.1/go.mod h1:T2/BmBdy8dvIRq1a/8aqjN41wvWlN4lrapLU/GW4pbc=
-github.com/peterbourgon/ff/v2 v2.0.0 h1:lx0oYI5qr/FU1xnpNhQ+EZM04gKgn46jyYvGEEqBBbY=
-github.com/peterbourgon/ff/v2 v2.0.0/go.mod h1:xjwr+t+SjWm4L46fcj/D+Ap+6ME7+HqFzaP22pP5Ggk=
 github.com/peterbourgon/ff/v3 v3.0.0/go.mod h1:UILIFjRH5a/ar8TjXYLTkIvSvekZqPm5Eb/qbGk6CT0=
+github.com/peterbourgon/ff/v3 v3.1.0 h1:5JAeDK5j/zhKFjyHEZQXwXBoDijERaos10RE+xamOsY=
+github.com/peterbourgon/ff/v3 v3.1.0/go.mod h1:XNJLY8EIl6MjMVjBS4F0+G0LYoAqs0DTa4rmHHukKDE=
 github.com/phayes/checkstyle v0.0.0-20170904204023-bfd46e6a821d h1:CdDQnGF8Nq9ocOS/xlSptM1N3BbrA6/kmaep5ggwaIA=
 github.com/phayes/checkstyle v0.0.0-20170904204023-bfd46e6a821d/go.mod h1:3OzsM7FXDQlpCiw2j81fOmAwQLnZnLGXVKUzeKQXIAw=
 github.com/pkg/diff v0.0.0-20200914180035-5b29258ca4f7 h1:+/+DxvQaYifJ+grD4klzrS5y+KJXldn/2YTl5JG+vZ8=