config: deindent all help texts

Those two spaces after tab have no effect, and always a nuisance when editing.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/util-linux/wall.c b/util-linux/wall.c
index 4550f0b..e214d8c 100644
--- a/util-linux/wall.c
+++ b/util-linux/wall.c
@@ -11,7 +11,7 @@
 //config:	default y
 //config:	depends on FEATURE_UTMP
 //config:	help
-//config:	  Write a message to all users that are logged in.
+//config:	Write a message to all users that are logged in.
 
 /* Needs to be run by root or be suid root - needs to write to /dev/TTY: */
 //applet:IF_WALL(APPLET(wall, BB_DIR_USR_BIN, BB_SUID_REQUIRE))