Fix typos in Prow bumper commit message
@@ -52,7 +52,7 @@ func generatePRBody(extraMsgs []string) string {
body += "\nPlease check [Prow release notes]" +
"(https://github.com/kubernetes/test-infra/blob/master/prow/ANNOUNCEMENTS.md) " +
- "to make sure there is no breaking changes\n"
+ "to make sure there are no breaking changes.\n"
oncaller, err := getOncaller()
var assignment string
