Fix resource leak warning in GetPatch#apply

Change-Id: I37d7cb29cff15c78a33d5beac7296ed10fb85f1b

java/com/google/gerrit/server/restapi/change/GetPatch.java

diff --git a/java/com/google/gerrit/server/restapi/change/GetPatch.java b/java/com/google/gerrit/server/restapi/change/GetPatch.java
index ece8c68..31785be 100644
--- a/java/com/google/gerrit/server/restapi/change/GetPatch.java
+++ b/java/com/google/gerrit/server/restapi/change/GetPatch.java
@@ -66,6 +66,7 @@
     boolean close = true;
     try {
       final RevWalk rw = new RevWalk(repo);
+      BinaryResult bin = null;
       try {
         final RevCommit commit = rw.parseCommit(rsrc.getPatchSet().commitId());
         RevCommit[] parents = commit.getParents();
@@ -77,7 +78,7 @@
         final RevCommit base = parents[0];
         rw.parseBody(base);
 
-        BinaryResult bin =
+        bin =
             new BinaryResult() {
               @Override
               public void writeTo(OutputStream out) throws IOException {
@@ -135,6 +136,7 @@
       } finally {
         if (close) {
           rw.close();
+          bin.close();
         }
       }
     } finally {