CheckCodeOwner: Improve debug log message if '*' is a code owner

Make it clearer that the user for which the code ownership is being
checked is a code owner when code ownership was assigned to the all
users wildcard (aka '*').

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Ib0d07594b88306e2d6d22e3b4d94799f604cc59f
diff --git a/java/com/google/gerrit/plugins/codeowners/restapi/CheckCodeOwner.java b/java/com/google/gerrit/plugins/codeowners/restapi/CheckCodeOwner.java
index 64bdf1e..9c4e144 100644
--- a/java/com/google/gerrit/plugins/codeowners/restapi/CheckCodeOwner.java
+++ b/java/com/google/gerrit/plugins/codeowners/restapi/CheckCodeOwner.java
@@ -221,15 +221,17 @@
             if (RefNames.isConfigRef(codeOwnerConfig.key().ref())) {
               messages.add(
                   String.format(
-                      "found email %s as a code owner in the default code owner config",
-                      CodeOwnerResolver.ALL_USERS_WILDCARD));
+                      "found the all users wildcard ('%s') as a code owner in the default code"
+                          + " owner config which makes %s a code owner",
+                      CodeOwnerResolver.ALL_USERS_WILDCARD, email));
               isDefaultCodeOwner.set(true);
             } else {
               Path codeOwnerConfigFilePath = codeOwners.getFilePath(codeOwnerConfig.key());
               messages.add(
                   String.format(
-                      "found email %s as a code owner in %s",
-                      CodeOwnerResolver.ALL_USERS_WILDCARD, codeOwnerConfigFilePath));
+                      "found the all users wildcard ('%s') as a code owner in %s which makes %s a"
+                          + " code owner",
+                      CodeOwnerResolver.ALL_USERS_WILDCARD, codeOwnerConfigFilePath, email));
               if (!codeOwnerConfigFilePaths.contains(codeOwnerConfigFilePath)) {
                 codeOwnerConfigFilePaths.add(codeOwnerConfigFilePath);
               }
diff --git a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CheckCodeOwnerIT.java b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CheckCodeOwnerIT.java
index 7a1f811..4baef37 100644
--- a/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CheckCodeOwnerIT.java
+++ b/javatests/com/google/gerrit/plugins/codeowners/acceptance/api/CheckCodeOwnerIT.java
@@ -286,8 +286,11 @@
     assertThat(checkCodeOwnerInfo)
         .hasDebugLogsThatContainAllOf(
             String.format(
-                "found email %s as a code owner in %s",
-                CodeOwnerResolver.ALL_USERS_WILDCARD, getCodeOwnerConfigFilePath(ROOT_PATH)));
+                "found the all users wildcard ('%s') as a code owner in %s which makes %s a code"
+                    + " owner",
+                CodeOwnerResolver.ALL_USERS_WILDCARD,
+                getCodeOwnerConfigFilePath(ROOT_PATH),
+                codeOwner.email()));
   }
 
   @Test
@@ -313,8 +316,11 @@
                 "found email %s as a code owner in %s",
                 codeOwner.email(), getCodeOwnerConfigFilePath(ROOT_PATH)),
             String.format(
-                "found email %s as a code owner in %s",
-                CodeOwnerResolver.ALL_USERS_WILDCARD, getCodeOwnerConfigFilePath(ROOT_PATH)));
+                "found the all users wildcard ('%s') as a code owner in %s which makes %s a code"
+                    + " owner",
+                CodeOwnerResolver.ALL_USERS_WILDCARD,
+                getCodeOwnerConfigFilePath(ROOT_PATH),
+                codeOwner.email()));
   }
 
   @Test
@@ -548,8 +554,10 @@
     assertThat(checkCodeOwnerInfo)
         .hasDebugLogsThatContainAllOf(
             String.format(
-                "found email %s as a code owner in %s",
-                CodeOwnerResolver.ALL_USERS_WILDCARD, getCodeOwnerConfigFilePath(ROOT_PATH)));
+                "found the all users wildcard ('%s') as a code owner in %s which makes %s a code owner",
+                CodeOwnerResolver.ALL_USERS_WILDCARD,
+                getCodeOwnerConfigFilePath(ROOT_PATH),
+                CodeOwnerResolver.ALL_USERS_WILDCARD));
   }
 
   @Test
@@ -601,8 +609,9 @@
     assertThat(checkCodeOwnerInfo)
         .hasDebugLogsThatContainAllOf(
             String.format(
-                "found email %s as a code owner in the default code owner config",
-                CodeOwnerResolver.ALL_USERS_WILDCARD),
+                "found the all users wildcard ('%s') as a code owner in the default code owner"
+                    + " config which makes %s a code owner",
+                CodeOwnerResolver.ALL_USERS_WILDCARD, defaultCodeOwner.email()),
             String.format(
                 "resolved email %s to account %s",
                 defaultCodeOwner.email(), defaultCodeOwner.id()));
@@ -1522,8 +1531,11 @@
                 ImmutableSet.of(
                     CodeOwnerAnnotations.NEVER_SUGGEST_ANNOTATION.key(), "OTHER_ANNOTATION")),
             String.format(
-                "found email %s as a code owner in %s",
-                CodeOwnerResolver.ALL_USERS_WILDCARD, getCodeOwnerConfigFilePath("/foo/")),
+                "found the all users wildcard ('%s') as a code owner in %s which makes %s a code"
+                    + " owner",
+                CodeOwnerResolver.ALL_USERS_WILDCARD,
+                getCodeOwnerConfigFilePath("/foo/"),
+                codeOwner.email()),
             String.format(
                 "found annotations for the all users wildcard ('%s') which apply to %s: %s",
                 CodeOwnerResolver.ALL_USERS_WILDCARD,