Don't duplicate option description in README, the manpage already has that info

Also, additional small cosmetic fix.

Corresponding to flashrom svn r440 and coreboot v2 svn r4196.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/layout.c b/layout.c
index 84a8ec7..87a52ad 100644
--- a/layout.c
+++ b/layout.c
@@ -108,8 +108,7 @@
 	 */
 	if (!strcasecmp(mainboard_vendor, lb_vendor) &&
 	    !strcasecmp(mainboard_part, lb_part)) {
-		printf_debug("This firmware image matches "
-			     "this motherboard.\n");
+		printf_debug("This firmware image matches this mainboard.\n");
 	} else {
 		if (force) {
 			printf("WARNING: This firmware image does not "