fixup! Update help and auto-generate flag help

Author: ammario

main.go

@@ -30,8 +30,8 @@ const helpTabWidth = 5
 
 var helpTab = strings.Repeat(" ", helpTabWidth)
 
-// flagHelp generates a friendly help-string for all the command line flags
-// registered with fs.
+// flagHelp generates a friendly help string for all globally registered command
+// line flags.
 func flagHelp() string {
 	var bd strings.Builder