Escape colon in zsh completion help
@@ -501,7 +501,8 @@ fn write_positionals_of(p: &App) -> String {
.help
.map_or("".to_owned(), |v| " -- ".to_owned() + v)
.replace("[", "\\[")
- .replace("]", "\\]"),
+ .replace("]", "\\]")
+ .replace(":", "\\:"),
action = arg
.possible_vals
.as_ref()
