argsparse.sh: checking if expand_aliases and progcomp are enabled or perform exit

Author: Damien Nadé

argsparse.sh

@@ -1032,6 +1032,7 @@ argsparse_allow_no_argument() {
 
 if [[ ${ARGSPARSE_COMPLETION_MODE-} ]]
 then
+	shopt progcomp expand_aliases >/dev/null || exit 1
 	alias argsparse_parse_options='return 0 2>/dev/null || : '
 else
 ## @fn argsparse_parse_options()