Merge branch 'mysql-5.5' into mysql-5.6

Author: bkandasa

packaging/rpm-oel/mysql.spec.in

@@ -626,7 +626,7 @@ rm -r $(readlink var) var
 
 %pre server
 /usr/sbin/groupadd -g 27 -o -r mysql >/dev/null 2>&1 || :
-/usr/sbin/useradd -M -N -g mysql -o -r -d /var/lib/mysql -s /bin/bash \
+/usr/sbin/useradd -M %{!?el5:-N} -g mysql -o -r -d /var/lib/mysql -s /bin/bash \
     -c "MySQL Server" -u 27 mysql >/dev/null 2>&1 || :
 
 %post server