Adapt to change in Gerrit core

Adapt to change Iecd9304aa in Gerrit core.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Ie898980a31587aabdcf4bde4aa286b1bf7b0b503
diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerSubmitRuleIT.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerSubmitRuleIT.java
index 41658e2..d7b1985 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerSubmitRuleIT.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CodeOwnerSubmitRuleIT.java
@@ -119,7 +119,7 @@
         .isEqualTo(
             String.format(
                 "Failed to submit 1 change due to the following problems:\n"
-                    + "Change %d: Code Owners",
+                    + "Change %d: Submit requirement not fulfilled: Code Owners",
                 changeInfo._number));
   }
 
@@ -172,7 +172,7 @@
         .isEqualTo(
             String.format(
                 "Failed to submit 1 change due to the following problems:\n"
-                    + "Change %d: Code Owners",
+                    + "Change %d: Submit requirement not fulfilled: Code Owners",
                 changeInfo._number));
   }