Update automake

Author: certik

pkgs/automake.yaml

@@ -7,8 +7,8 @@ defaults:
   relocatable: false
 
 sources:
-- key: tar.gz:pbduetkcatiwe7ast2obloa6crmdnl5c
-  url: http://ftp.heanet.ie/mirrors/gnu/automake/automake-1.14.tar.gz
+- key: tar.xz:teemowvl2sorgzq5nxfrxq4ceuwsftdx
+  url: http://ftp.gnu.org/gnu/automake/automake-1.15.tar.xz
 
 when_build_dependency:
 - prepend_path: PATH