kbuild: print usage with no arguments in scripts/config

Requested by Sam.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

diff --git a/scripts/config b/scripts/config
index 68b9761..db6084b 100755 (executable)
--- a/scripts/config
+++ b/scripts/config
@@ -60,6 +60,10 @@ else
        FN=.config
 fi
 
+if [ "$1" = "" ] ; then
+       usage
+fi
+
 while [ "$1" != "" ] ; do
        CMD="$1"
        shift