mariadb: fix mariadb-clients short_desc.

srcpkgs/mariadb/template

@@ -1,7 +1,7 @@
 # Template file for 'mariadb'
 pkgname=mariadb
 version=5.5.33
-revision=2
+revision=3
 build_style=cmake
 configure_args="-DSYSCONFDIR=/etc/mysql -DMYSQL_DATADIR=/var/lib/mysql
  -DMYSQL_UNIX_ADDR=/run/mysqld/mysqld.sock -DDEFAULT_CHARSET=utf8
@@ -102,7 +102,7 @@ mariadb-client_package() {
 	depends="perl"
 	provides="mysql-client-${version}_${revision}"
 	replaces="mysql-client>=0"
-	short_desc=+" - client binaries"
+	short_desc+=" - client binaries"
 	pkg_install() {
 		for f in innochecksum innotop myisam_ftdump mysql mysql_client_test \
 			mysql_client_test_embedded mysqldumpslow mysqlbinlog \