[PATCH] trivial: RCS___IGNORE quilt backup files

From:  David Gibson <david@gibson.dropbear.id.au>

This patch excludes the .pc directory from the same things that
SCCS/BitKeeper/.svn/CVS files are excluded from.  The .pc directory is used
for backup/reference files by quilt, a patch mangling system conceptually
derived from akpm's patch scripts.  Excluding the .pc directory is handy,
because otherwise old versions of files found in there tend to end up at the
front of the TAGS index.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Makefile

@@ -332,8 +332,8 @@ depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
 
 # Files to ignore in find ... statements
 
-RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \) -prune -o
-RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS
+RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc \) -prune -o
+RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc
 
 # ===========================================================================
 # Rules shared between *config targets and build targets