12/12: gnu: fdm: Edit description.

[guix-commits]

nckx pushed a commit to branch master
in repository guix.

commit b9d309114b7226b3617523d8e4e862d48fcad2c4
Author: Tobias Geerinckx-Rice <me@tobias.gr>
AuthorDate: Sun Jun 12 02:00:00 2022 +0200

    gnu: fdm: Edit description.
    
    * gnu/packages/mail.scm (fdm)[synopsis]: Use @acronym{}.
    [description]: Expand based on the README.
---
 gnu/packages/mail.scm | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 06823a09a5..15a53a337d 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -2435,10 +2435,18 @@ compatibility shims for the @command{sendmail}, 
@command{mailq}, and
     (inputs
      (list tdb openssl zlib))
     (home-page "https://github.com/nicm/fdm";)
-    (synopsis "Mail Retrieval Agent (MRA) and Mail Delivery Agent (MDA)")
-    (description "fdm is a program designed to fetch mail from POP3
-or IMAP servers, or receive local mail from stdin, and
-deliver it in various ways.")
+    (synopsis
+     "@acronym{MRA, Mail Retrieval Agent} and @acronym{MDA, Mail Delivery 
Agent}")
+    (description "fdm fetches and delivers mail in various ways.
+
+Mail may be fetched from IMAP or POP3 servers, from local maildirs, or read
+from standard input.  It is then filtered based on regular expressions, its
+size or age, or the output of a (shell) command.  It can be rewritten by an
+external process, dropped, left on the server or delivered into maildirs,
+mboxes, to a file or pipe, or any combination.
+
+fdm is primarily designed for use by a single user, but can use privilege
+separation to safely deliver mail in multi-user setups.")
     (license
      ;; Why point to a source file?  Well, all the individual files have a
      ;; copy of this license in their headers, but there's no seprate file