perl: Bump PKG_RELEASE

Signed-off-by: Marcel Denia <naoir@gmx.net>

lang/perl/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=perl
 PKG_VERSION:=5.20.1
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE_URL:=ftp://ftp.cpan.org/pub/CPAN/src/5.0 \
 		http://www.cpan.org/src/5.0/perl-5.20.0.tar.gz \