[PATCH] kbuild: When checking depmod version, redirect stderr

When running depmod to check for the correct version number, extra
output we don't need to see, such as "depmod: QM_MODULES: Function not
implemented" may show up.  Redirect stderr to /dev/null as the version
information that we do care about comes to stdout.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Makefile

@@ -886,7 +886,7 @@ modules_install: _modinst_ _modinst_post
 
 .PHONY: _modinst_
 _modinst_:
-	@if [ -z "`$(DEPMOD) -V | grep module-init-tools`" ]; then \
+	@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
 		echo "Warning: you may need to install module-init-tools"; \
 		echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
 		sleep 1; \