perl-cgi: disable comment stripping which damages module

The macro perlmod/Install does comment stripping which gets confused by
the line:

in several files in this module, incorrectly deleting it as a comment.
It's not: it's the closure of a "= q/" literal.

See PR #3740 as this is a prerequisite.

Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>

lang/perl-cgi/Makefile

@@ -16,10 +16,14 @@ PKG_SOURCE:=CGI-$(PKG_VERSION).tar.gz
 PKG_MD5SUM:=15e63942c02354426b25f056f2a4467c
 
 PKG_LICENSE:=GPL Artistic-2.0
-PKG_MAINTAINER:=Marcel Denia <naoir@gmx.net>
+PKG_MAINTAINER:=Marcel Denia <naoir@gmx.net>, \
+		Philip Prindeville <philipp@redfish-solutions.com>
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/perl/CGI-$(PKG_VERSION)
 
+# don't strip comments because that will mangle this module
+PKG_LEAVE_COMMENTS:=1
+
 include $(INCLUDE_DIR)/package.mk
 include ../perl/perlmod.mk