mariadb: update to 10.1.21.

Fixes
* CVE-2016-6664
* CVE-2017-3312

And following CVEs affecting MySQL
* CVE-2017-3238
* CVE-2017-3243
* CVE-2017-3244
* CVE-2017-3257
* CVE-2017-3258
* CVE-2017-3265
* CVE-2017-3291
* CVE-2017-3312
* CVE-2017-3317
* CVE-2017-3318

srcpkgs/mariadb/template

@@ -1,7 +1,7 @@
 # Template file for 'mariadb'
 pkgname=mariadb
-version=10.1.18
-revision=2
+version=10.1.21
+revision=1
 build_style=cmake
 configure_args="-DMYSQL_DATADIR=/var/lib/mysql
  -DMYSQL_UNIX_ADDR=/run/mysqld/mysqld.sock -DDEFAULT_CHARSET=utf8
@@ -31,7 +31,7 @@ maintainer="Juan RP <xtraeme@voidlinux.eu>"
 homepage="http://mariadb.org/"
 license="GPL-2"
 distfiles="https://downloads.$pkgname.org/f/$pkgname-$version/source/$pkgname-$version.tar.gz"
-checksum=d7336907e9ff44496d6453f92526b25bd253638a64a051ca879f953499873b73
+checksum=5a816355781ea22a6c65a436d8162f19bd292ec90e2b7d9499c031ae4a659490
 CFLAGS="-w"
 
 pre_configure() {