shadow: fixed to correctly remove groups manpage from Makefiles without messing them up

base/shadow/shadow.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../shadow/shadow.conf
-# Copyright (C) 2006 - 2009 The OpenSDE Project
+# Copyright (C) 2006 - 2012 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -26,7 +26,7 @@ disable_groups() {
 	echo_status "Disabling groups command..."
 	echo_status "Using groups command provided by coreutils..."
 	sed 's/groups$(EXEEXT) //' -i.orig src/Makefile
-	find man -name Makefile -exec sed '/groups/d' -i.orig '{}' \;
+	find man -name Makefile -exec sed 's/groups\.1 //' -i.orig '{}' \;
 }
 hook_add premake 3 "disable_groups"