Fix JSDoc comments for behaviors

Change-Id: Ifed33afffb6b30adb98f62b4cfcbefda858a999f
diff --git a/polygerrit-ui/app/behaviors/gr-repo-plugin-config-behavior/gr-repo-plugin-config-behavior.html b/polygerrit-ui/app/behaviors/gr-repo-plugin-config-behavior/gr-repo-plugin-config-behavior.html
index 2dc070d..2fa9191 100644
--- a/polygerrit-ui/app/behaviors/gr-repo-plugin-config-behavior/gr-repo-plugin-config-behavior.html
+++ b/polygerrit-ui/app/behaviors/gr-repo-plugin-config-behavior/gr-repo-plugin-config-behavior.html
@@ -20,7 +20,7 @@
 
   window.Gerrit = window.Gerrit || {};
 
-  /** @polymerBehavior this */
+  /** @polymerBehavior Gerrit.RepoPluginConfig*/
   Gerrit.RepoPluginConfig = {
     // Should be kept in sync with
     // gerrit/java/com/google/gerrit/extensions/api/projects/ProjectConfigEntryType.java.