Critical backport from 10.0 (commit 439123d)

debian/changelog

+mariadb-5.5 (5.5.41-2) unstable; urgency=low
+
+  * Critical backport from 10.0 (commit 439123d):
+    Fix mariadb-server-5.5.postinst so that the flag removal will not emit
+    an error code if there are no previous debian-*.flag files.
+
+ -- Otto Kekäläinen <otto@seravo.fi>  Wed, 04 Feb 2015 11:28:16 +0200
+
 mariadb-5.5 (5.5.41-1) unstable; urgency=low
 
   * New upstream release
   * Backported new cacert.pem etc from 5.5 the replace the expired ones
 
- -- Otto Kekäläinen <otto@seravo.fi>  Sat, 27 Dec 2014 15:59:46 +0200
+ -- Otto Kekäläinen <otto@seravo.fi>  Wed, 04 Feb 2015 11:27:40 +0200
 
 mariadb-5.5 (5.5.39-3) UNRELEASED; urgency=low
 

debian/mariadb-server-5.5.postinst

@@ -135,7 +135,7 @@ EOF
     db_set mysql-server/postrm_remove_database false || true
 
     # Clean up old flags before setting new one
-    rm $mysql_statedir/debian-*.flag
+    rm -f $mysql_statedir/debian-*.flag
     # To avoid downgrades.
     touch $mysql_statedir/debian-5.5.flag