The word "on of" is wrong, so fix it.

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

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index dacad94e2be4..87823a05a6b4 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -1245,7 +1245,7 @@ sub __read_config {
 	    # Config variables are only active while reading the
 	    # config and can be defined anywhere. They also ignore
 	    # TEST_START and DEFAULTS, but are skipped if they are in
-	    # on of these sections that have SKIP defined.
+	    # one of these sections that have SKIP defined.
 	    # The save variable can be
 	    # defined multiple times and the new one simply overrides
 	    # the previous one.
-- 
2.33.0