refactor(dnssec-keygen,links,zpofli): use builtin feat for filtering

Author: scop

completions/dnssec-keygen

@@ -39,8 +39,7 @@ _comp_cmd_dnssec_keygen()
     if [[ $cur == -* ]]; then
         _comp_compgen -R help
         ((${#COMPREPLY[@]})) &&
-            _comp_compgen -- -W '$(printf "%s\n" "${COMPREPLY[@]}" |
-                command sed -e "s/:\$//")'
+            _comp_compgen -- -W '"${COMPREPLY[@]%:}"'
         return
     fi
 } &&

completions/links

@@ -82,8 +82,7 @@ _comp_cmd_links()
     if [[ $cur == -* ]]; then
         _comp_compgen -R help
         ((${#COMPREPLY[@]})) &&
-            _comp_compgen -- -W '$(printf "%s\n" "${COMPREPLY[@]}" |
-                command grep -vF -- "->")'
+            _comp_compgen -- -W '"${COMPREPLY[@]}"' -X "->"
         return
     fi
 

completions/zopfli

@@ -14,8 +14,7 @@ _comp_cmd_zopfli()
     if [[ $cur == -* ]]; then
         _comp_compgen -R help -- -h
         ((${#COMPREPLY[@]})) &&
-            _comp_compgen -- -W '$(printf "%s\n" "${COMPREPLY[@]}" |
-                command sed -e "s/#$//")' -- "$cur"
+            _comp_compgen -- -W '"${COMPREPLY[@]%#}"'
         [[ ${COMPREPLY-} == --i ]] && compopt -o nospace
         return
     fi