Aaron Hawley <aaronh at garden.org>

(jka-compr-compression-info-list): Use gzip to extract .Z files, since
it is more common than uncompress.

lisp/jka-cmpr-hook.el

@@ -186,7 +186,7 @@ options through Custom does this automatically."
   ;; can-append strip-extension-flag file-magic-bytes]
   '(["\\.Z\\(~\\|\\.~[0-9]+~\\)?\\'"
      "compressing"    "compress"     ("-c")
-     "uncompressing"  "uncompress"   ("-c")
+     "uncompressing"  "gzip"   ("-c" "-q" "-d")
      nil t "\037\235"]
      ;; Formerly, these had an additional arg "-c", but that fails with
      ;; "Version 0.1pl2, 29-Aug-97." (RedHat 5.1 GNU/Linux) and