The use of the verb "are" is incorrect, so fix it.

Signed-off-by: Ba Jing <bajing@cmss.chinamobile.com>
---
 tools/testing/ktest/sample.conf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index f43477a9b857..6d6565433ae8 100644
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -374,7 +374,7 @@
 # title Test Kernel
 # kernel vmlinuz-test
 #
-# For grub2, a search of top level "menuentry"s are done. No
+# For grub2, a search of top level "menuentry" is done. No
 # submenu is searched. The menu is found by searching for the
 # contents of GRUB_MENU in the line that starts with "menuentry".
 # You may want to include the quotes around the option. For example:
-- 
2.33.0