Enable Eclipse Javadoc warnings about malformed syntax

Fix warnings about unmatched {} in inline tags.

Enabling any more than this set of warnings introduces hundreds of
warnings about things like missing @throws tags, which we may want to
fix, but is a lot more work.

Change-Id: Ic671fb600d2e1ba49b7e855158811c6c98b6cda1

gerrit-gwtui/src/main/java/com/google/gerrit/client/api/PluginName.java

@@ -25,7 +25,7 @@ import com.google.gwt.core.client.JsArrayString;
  * JavaScript call stack and identifying the URL of the script file calling
  * {@code Gerrit.install()}. The simple approach applied here is looking at
  * the source URLs and extracting the name out of the string, e.g.:
- * {@code "http://localhost:8080/plugins/{name}/static/foo.js"}.
+ * {@code "http://localhost:8080/plugins/[name]/static/foo.js"}.
  */
 class PluginName {
   private static final String UNKNOWN = "<unknown>";