Kbuild: avoid backup localversion files

Avoid including as localversion-files the *~ files, i.e. backup files. If I
have localversion-a and localversion-a~, I don't want both to be used. Nor I
want to use localversion*~ anyway.

Don't code that as $(wildcard localversion*[^~]) as that would exclude
"localversion" from the wildcard expansion result, because it requires at
least one character after localversion to exist in the name file. I.e.,
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>

Makefile

@@ -156,7 +156,7 @@ localversion-files := $(wildcard $(objtree)/localversion* $(srctree)/localversio
 endif
 
 LOCALVERSION = $(subst $(space),, \
-	       $(shell cat /dev/null $(localversion-files)) \
+	       $(shell cat /dev/null $(localversion-files:%~=)) \
 	       $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
 
 KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(LOCALVERSION)