kconfig: config script: add a little user help

Give the user a clue about the problem along with the 35 lines of
usage/help text.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/scripts/config b/scripts/config
index 8c8d7c3d7accc77b31ea6e5f0e4749c35a2524d3..ff88e2faefd35c2d763a1d485eef39140efaa300 100755 (executable)
--- a/scripts/config
+++ b/scripts/config
@@ -223,6 +223,7 @@ while [ "$1" != "" ] ; do
                ;;
 
        *)
+               echo "bad command: $CMD" >&2
                usage
                ;;
        esac