Fix syntax for osgi servlet api feature
diff --git a/jetty.bundles.f/feature.xml b/jetty.bundles.f/feature.xml
index e943fde..148e321 100644
--- a/jetty.bundles.f/feature.xml
+++ b/jetty.bundles.f/feature.xml
@@ -122,7 +122,7 @@
          unpack="false"/>
 
    <plugin
-         id="org.eclipse.jetty.osgi-servlet-api
+         id="org.eclipse.jetty.osgi-servlet-api"
          download-size="0"
          install-size="0"
          version="0.0.0"