cmd/tailscale: hide share subcommand

Fixes #1115

Signed-off-by: Percy Wegmann <percy@tailscale.com>

cmd/tailscale/cli/cli.go

@@ -125,7 +125,6 @@ change in the future.
 			versionCmd,
 			webCmd,
 			fileCmd,
-			shareCmd,
 			bugReportCmd,
 			certCmd,
 			netlockCmd,
@@ -148,6 +147,8 @@ change in the future.
 	switch {
 	case slices.Contains(args, "debug"):
 		rootCmd.Subcommands = append(rootCmd.Subcommands, debugCmd)
+	case slices.Contains(args, "share"):
+		rootCmd.Subcommands = append(rootCmd.Subcommands, shareCmd)
 	}
 	if runtime.GOOS == "linux" && distro.Get() == distro.Synology {
 		rootCmd.Subcommands = append(rootCmd.Subcommands, configureHostCmd)