!fixup revert(7z): recover -a for filedir

Author: akinomyoga

completions/7z

@@ -109,7 +109,7 @@ _comp_cmd_7z()
         #   - terminate on token containing anything [^a-z0-9]
         #     (assumption: extensions are all lowercase)
         [[ $mode == w ]] &&
-            _comp_compgen filedir '@(7z|bz2|swf|?(g)tar|?(t)[bglx]z|tb?(z)2|wim)' ||
+            _comp_compgen -a filedir '@(7z|bz2|swf|?(g)tar|?(t)[bglx]z|tb?(z)2|wim)' ||
             _comp_compgen -a filedir '@(7z?(.001)|arj|bz2|cab|cb7|chm|cpio|deb|dmg|flv|gem|img|iso|lz[ah]|lzma?(86)|msi|pmd|[rx]ar|rpm|sw[fm]|?(g)tar|taz|?(t)[bglx]z|tb?(z)2|vhd|wim|Z)'
     else
         if [[ ${words[1]} == d ]]; then