Add dired-do-compress-to command bound to "c"

* lisp/dired-aux.el (dired-shell-command): Use the caller's
  `default-directory', return the result of `process-file'.
(dired-compress-file-suffixes): Add comment on why "tar -zxf" isn't
used by default.
(dired-compress-files-alist): New defvar.
(dired-do-compress-to): New command.

* lisp/dired.el (dired-mode-map): Bind `dired-do-compress-to' to "c".
(dired-do-compress-to): Add an autoload entry.

* etc/NEWS: Add two entries.

1 files changed, 6 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index ef90268c5d2..0cb814b7eea 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -275,6 +275,12 @@ header.
 ** `tabulated-list-print' takes a second optional argument, update,
 which specifies an alternative printing method which is faster when
 few or no entries have changed.
+** The command `dired-do-compress' bound to `Z' now can compress
+directories and decompress zip files.
+** New command `dired-do-compress-to' bound to `c' can be used to compress
+many marked files into a single named archive.  The compression
+command is determined from the new `dired-compress-files-alist'
+variable.
 
 
 * Editing Changes in Emacs 25.1