Update completion/available/hub.completion.bash

Co-authored-by: Koichi Murase <[email protected]>

Author: seefood

Diff for: completion/available/hub.completion.bash

@@ -64,7 +64,7 @@ if _is_function _git && ! _is_function __git_list_all_commands_without_hub; then
 	# hub alias [-s] [SHELL]
 	_git_alias() {
 		local i c=2 s=-s sh shells="bash zsh sh ksh csh fish"
-		while [ $c -lt "$cword" ]; do
+		while [[ $c -lt $cword ]]; do
 			i="${words[c]}"
 			case "$i" in
 				-s)