Parse pigz options from pigz, not gzip, option completion improvements.

CHANGES

@@ -25,9 +25,9 @@ bash-completion (2.x)
   * Apply cardctl completion to pccardctl too.
   * Apply pine completion to alpine too.
   * Remove many unnecessary short option completions where long ones exist.
-  * Improve chsh, configure, cvs, gkrellm, lftp, look, mdadm, modprobe, mplayer,
-    mysqladmin, rsync, screen, service, scp, ssh, sshfs, update-alternatives,
-    vncviewer, yp-tools, and general hostname completions.
+  * Improve chsh, configure, cvs, gkrellm, gzip, lftp, look, mdadm, modprobe,
+    mplayer, mysqladmin, rsync, screen, service, scp, ssh, sshfs,
+    update-alternatives, vncviewer, yp-tools, and general hostname completions.
   * Add abook and wtf completion, based on work by Raphaël Droz.
   * Add cvsps, dragon, fusermount, jarsigner, k3b, lftpget, pm-utils, rtcwake,
     pack200, unpack200, pbzip2, pbunzip2, pbzcat, pigz and unpigz completions.

contrib/gzip

@@ -8,10 +8,17 @@ _gzip()
     COMPREPLY=()
     cur=`_get_cword`
     prev=${COMP_WORDS[COMP_CWORD-1]}
-    helpopts=`_parse_help gzip`
+    helpopts=`_parse_help ${COMP_WORDS[0]}`
+
+    case $prev in
+        -b|--blocksize|-p|--processes|-S|--suffix|-h|--help|-V|--version)
+            return 0
+            ;;
+    esac
 
     if [[ "$cur" == -* ]]; then
-        COMPREPLY=( $( compgen -W "$helpopts -2 -3 -4 -5 -6 -7 -8" -- "$cur" ) )
+        COMPREPLY=( $( compgen -W "$helpopts -1 -2 -3 -4 -5 -6 -7 -8 -9" \
+            -- "$cur" ) )
         return 0
     fi