04/04: gnu: par2cmdline: Improve synopsis & description.

[Tobias Geerinckx-Rice]

nckx pushed a commit to branch master
in repository guix.

commit f6d59ecf920dadcaa115579e29ad38d16780ea89
Author: Tobias Geerinckx-Rice <address@hidden>
Date:   Sun Jul 16 06:43:55 2017 +0200

    gnu: par2cmdline: Improve synopsis & description.
    
    * gnu/packages/backup.scm (par2cmdline)[synopsis, description]: Fix a typo,
    end up re-writing most of it.
---
 gnu/packages/backup.scm | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/backup.scm b/gnu/packages/backup.scm
index 0810a47..92cb048 100644
--- a/gnu/packages/backup.scm
+++ b/gnu/packages/backup.scm
@@ -136,10 +136,15 @@ spying and/or modification by the server.")
        (modify-phases %standard-phases
          (add-after 'unpack 'autoreconf
            (lambda _ (zero? (system* "autoreconf" "-vfi")))))))
-    (synopsis "File verification and repair tool")
-    (description "Par2cmdline is a tool for generating RAID-like PAR2 recovery
-files using Reed-Solomon coding.  PAR2 files can be stored along side backups
-or distributed files for recovering from bitrot.")
+    (synopsis "File verification and repair tools")
+    (description "Par2cmdline uses Reed-Solomon error-correcting codes to
+generate and verify PAR2 recovery files.  These files can be distributed
+alongside the source files or stored together with back-ups to protect against
+transmission errors or @dfn{bit rot}, the degradation of storage media over
+time.
+Unlike a simple checksum, PAR2 doesn't merely detect errors: as long as the
+damage isn't to great (and smaller than the size of the recovery file), it can
+even repair them.")
     (home-page "https://github.com/Parchive/par2cmdline";)
     (license license:gpl3+)))