PluginServletContext: Instantiate logger with class name

Change-Id: Id70a13b0f8c13304c6ad9a0ba60491782351685d
diff --git a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
index c3395b5..af34c5f 100644
--- a/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
+++ b/gerrit-httpd/src/main/java/com/google/gerrit/httpd/plugins/PluginServletContext.java
@@ -36,7 +36,8 @@
 import javax.servlet.ServletContext;
 
 class PluginServletContext {
-  private static final Logger log = LoggerFactory.getLogger("plugin");
+  private static final Logger log =
+      LoggerFactory.getLogger(PluginServletContext.class);
 
   static ServletContext create(Plugin plugin, String contextPath) {
     return (ServletContext) Proxy.newProxyInstance(