WatchConfig: Fix bad javadoc which prevents building the Gerrit API

Change-Id: If025db78e3c8a741b0dc8c18470c76dc866a4422
Signed-off-by: Edwin Kempin <ekempin@google.com>
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/account/WatchConfig.java b/gerrit-server/src/main/java/com/google/gerrit/server/account/WatchConfig.java
index 8e783ad..fb9f1a3 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/account/WatchConfig.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/account/WatchConfig.java
@@ -69,7 +69,7 @@
  * The project name is used as subsection name and the filters with the notify
  * types that decide for which events email notifications should be sent are
  * represented as 'notify' values in the subsection. A 'notify' value is
- * formatted as '<filter> [<comma-separated-list-of-notify-types>]':
+ * formatted as {@code <filter> [<comma-separated-list-of-notify-types>]}:
  *
  * <pre>
  *   [project "foo"]