[ring-kde] doc: doc: Write docbook date in standard format

[Alexander Potashev]

Git commit 2b78e2fbef7a902c2a7ff355e9bfb592cc0dda4e by Alexander Potashev.
Committed on 12/06/2019 at 21:52.
Pushed by aspotashev into branch 'master'.

doc: Write docbook date in standard format

M  +1    -1    doc/man-ring-kde.1.docbook

https://commits.kde.org/ring-kde/2b78e2fbef7a902c2a7ff355e9bfb592cc0dda4e

diff --git a/doc/man-ring-kde.1.docbook b/doc/man-ring-kde.1.docbook
index accab13d..5b461e6d 100644
--- a/doc/man-ring-kde.1.docbook
+++ b/doc/man-ring-kde.1.docbook
@@ -20,7 +20,7 @@
     <address><email>emmanuel.lepage at savoirfairelinux.com</email></address>
   </affiliation>
 </author>
-<date>August 3 2012</date>
+<date>2012-08-03</date>
 <productname>ring-kde</productname>
 </refentryinfo>