minidiag: Update strings for minidiag v1.0

BRANCH=dedede,volteer,trogdor,zork
BUG=b:182338095
TEST=none

Cq-Depend: chromium:2789114
Signed-off-by: Chung-Sheng Wu <chungsheng@google.com>
Change-Id: I865b28d8a8a6e1f3924ce94fb38b6c7799a797dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2789115
Tested-by: Chung-Sheng Wu <chungsheng@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Commit-Queue: Chung-Sheng Wu <chungsheng@chromium.org>
diff --git a/firmware/2lib/2ui_screens.c b/firmware/2lib/2ui_screens.c
index 5c460a2..e791581 100644
--- a/firmware/2lib/2ui_screens.c
+++ b/firmware/2lib/2ui_screens.c
@@ -1180,7 +1180,7 @@
 	[DIAGNOSTICS_MEMORY_ITEM_PAGE_DOWN] = PAGE_DOWN_ITEM,
 	[DIAGNOSTICS_MEMORY_ITEM_BACK] = BACK_ITEM,
 	[DIAGNOSTICS_MEMORY_ITEM_CANCEL] = {
-		.text = "Cancel and go back",
+		.text = "Cancel",
 		.action = vb2_ui_screen_back,
 	},
 	POWER_OFF_ITEM,