print/foomatic-filters: Patch Ghostscript call to count PDF pages

Before this patch, the Ghostscript call for counting PDF pages used the
obsolete "pdfdict".  Patch to use "runpdfbegin" instead.

For more information, see Arch Linux bug 62251.
https://bugs.archlinux.org/task/62251

Reported by:	Thomas Vaughan <thomas@vaughan.net>
Sponsored by:	The FreeBSD Foundation

print/foomatic-filters/Makefile

@@ -1,6 +1,6 @@
 PORTNAME=	foomatic-filters
 PORTVERSION=	4.0.17
-PORTREVISION=	11
+PORTREVISION=	12
 CATEGORIES=	print
 MASTER_SITES=	http://www.openprinting.org/download/foomatic/
 

print/foomatic-filters/files/patch-pdf.c

@@ -0,0 +1,14 @@
+--- pdf.c.orig	2012-07-02 14:50:46 UTC
++++ pdf.c
+@@ -46,9 +46,8 @@ static int pdf_count_pages(const char *filename)
+     int pagecount;
+ 
+     snprintf(gscommand, 4095, "%s -dNODISPLAY -q -c "
+-	     "'/pdffile (%s) (r) file def pdfdict begin pdffile pdfopen begin "
+-	     "(PageCount: ) print pdfpagecount == flush currentdict pdfclose "
+-	     "end end quit'",
++	     "'/pdffile (%s) (r) file runpdfbegin (PageCount: ) print "
++	     "pdfpagecount = quit'",
+ 	     gspath, filename);
+ 
+     FILE *pd = popen(gscommand, "r");