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This applies to the packages feed. It fixes a case with newer groff returning different warming messages than expected by the libX11 build infrastructure expects. This patch was shamelessly swiped from Ubuntu's package. git-svn-id: svn://svn.openwrt.org/openwrt/packages@26501 3c298f89-4303-0410-b956-a3cf2f4a3e73