HideProject: Close MetaDataUpdate after use

MetaDataUpdate is an AutoCloseable.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I4016ccb31563d7af5c453d6d8b0f7a0c4bd54924

src/main/java/com/googlesource/gerrit/plugins/deleteproject/HideProject.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/HideProject.java b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/HideProject.java
index c54deb6..b756364 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/deleteproject/HideProject.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/deleteproject/HideProject.java
@@ -58,9 +58,7 @@
   }
 
   public void apply(ProjectResource rsrc) throws IOException, RestApiException {
-    try {
-      MetaDataUpdate md = metaDataUpdateFactory.create(rsrc.getNameKey());
-
+    try (MetaDataUpdate md = metaDataUpdateFactory.create(rsrc.getNameKey())) {
       ProjectConfig projectConfig = projectConfigFactory.read(md);
       projectConfig.updateProject(p -> p.setState(ProjectState.HIDDEN));