cups-filters: fix autoreconf justification

The tarball is not broken at all: we are patching the Makefile.am.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/cups-filters/cups-filters.mk

@@ -8,7 +8,7 @@ CUPS_FILTERS_VERSION = 1.21.3
 CUPS_FILTERS_SITE = http://openprinting.org/download/cups-filters
 CUPS_FILTERS_LICENSE = GPL-2.0, GPL-2.0+, GPL-3.0, GPL-3.0+, LGPL-2, LGPL-2.1+, MIT, BSD-4-Clause
 CUPS_FILTERS_LICENSE_FILES = COPYING
-# release tarball is broken, Makefile.am is newer than Makefile.in
+# 0001-Replace-relative-linking-with-absolute-linking.patch
 CUPS_FILTERS_AUTORECONF = YES
 
 CUPS_FILTERS_DEPENDENCIES = cups libglib2 lcms2 qpdf fontconfig freetype jpeg