Enable error level for the EscapedEntity bug pattern in ErrorProne

Fix the current issues so that the build continues to work.

Bug: Issue 15063
Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Iab0b57383da817e1e9832fec0f8bfcf9343699c4
diff --git a/java/com/google/gerrit/entities/Account.java b/java/com/google/gerrit/entities/Account.java
index cd3b27a..18fcef3 100644
--- a/java/com/google/gerrit/entities/Account.java
+++ b/java/com/google/gerrit/entities/Account.java
@@ -196,9 +196,9 @@
    * <p>Example output:
    *
    * <ul>
-   *   <li>{@code A U. Thor &lt;author@example.com&gt;}: full populated
+   *   <li>{@code A U. Thor <author@example.com>}: full populated
    *   <li>{@code A U. Thor (12)}: missing email address
-   *   <li>{@code Anonymous Coward &lt;author@example.com&gt;}: missing name
+   *   <li>{@code Anonymous Coward <author@example.com>}: missing name
    *   <li>{@code Anonymous Coward (12)}: missing name and email address
    * </ul>
    */
diff --git a/tools/BUILD b/tools/BUILD
index 62decf5..3fd2a0f 100644
--- a/tools/BUILD
+++ b/tools/BUILD
@@ -180,7 +180,7 @@
         "-Xep:EqualsUsingHashCode:ERROR",
         "-Xep:EqualsWrongThing:ERROR",
         "-Xep:ErroneousThreadPoolConstructorChecker:ERROR",
-        # "-Xep:EscapedEntity:WARN",
+        "-Xep:EscapedEntity:WARN",
         "-Xep:ExpectedExceptionChecker:ERROR",
         "-Xep:ExtendingJUnitAssert:ERROR",
         "-Xep:ExtendsAutoValue:ERROR",