Change name so it's more clear that it does double duty

cmd/hostess/hostess.go

@@ -81,13 +81,13 @@ func main() {
 		{
 			Name:   "on",
 			Usage:  "enable a hosts entry (if if exists)",
-			Action: hostess.On,
+			Action: hostess.OnOff,
 			Flags:  app.Flags,
 		},
 		{
 			Name:   "off",
 			Usage:  "disable a hosts entry (don't delete it)",
-			Action: hostess.On,
+			Action: hostess.OnOff,
 			Flags:  app.Flags,
 		},
 		{

commands.go

@@ -152,7 +152,7 @@ func Has(c *cli.Context) {
 
 // On (and off) command enables (uncomments) or disables (comments) the
 // specified hostname in the hosts file
-func On(c *cli.Context) {
+func OnOff(c *cli.Context) {
 	if len(c.Args()) != 1 {
 		MaybeError(c, "expected <hostname>")
 	}