package/mariadb: add bug tracker link to existing patch

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/mariadb/0001-add-extra-check-for-librt.patch

@@ -3,6 +3,8 @@ From: Ryan Coe <bluemrp9@gmail.com>
 Date: Thu, 27 Oct 2016 20:33:21 -0700
 Subject: [PATCH] add extra check for librt
 
+https://jira.mariadb.org/browse/MDEV-10841
+
 Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
 ---
  configure.cmake | 3 +++