kconfig: config script: add a little user help

rddunlap · masahir0y · commit d39648eb67ac · 2021-01-04T10:38:11.000+09:00
Give the user a clue about the problem along with the 35 lines of
usage/help text.

Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Andi Kleen &lt;ak@linux.intel.com&gt;
Cc: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
diff --git a/scripts/config b/scripts/config
@@ -223,6 +223,7 @@ while [ "$1" != "" ] ; do
 		;;
 
 	*)
+		echo "bad command: $CMD" >&2
 		usage
 		;;
 	esac

-Original file line number
+Diff line change
 		;;
 	*)
 +		echo "bad command: $CMD" >&2
 		usage
 		;;
 	esac