fix(help): remove redundant option --help on callers

Co-authored-by: Ville Skyttä <[email protected]>

Author: akinomyoga

completions/slapt-get

@@ -17,7 +17,7 @@ _comp_cmd_slapt_get()
     esac
 
     if [[ $cur == -* ]]; then
-        _comp_compgen_help "$1" --help
+        _comp_compgen_help "$1"
         if [[ ${COMPREPLY-} ]]; then
             [[ $COMPREPLY == *= ]] && compopt -o nospace
             return