Fix inifinite recursion in RefControl.isOwner

I accidentally inverted the logic when I changed this line.
Shame on me.

Change-Id: I6d8225fbfb663074f8a5d7c4e90e72b47eff066c
Signed-off-by: Shawn O. Pearce <sop@google.com>

gerrit-server/src/main/java/com/google/gerrit/server/project/RefControl.java

@@ -106,7 +106,7 @@ public class RefControl {
     // calls us to find out if there is ownership of all references in
     // order to determine project level ownership.
     //
-    if (getRefName().equals(
+    if (!getRefName().equals(
         RefRight.ALL.substring(0, RefRight.ALL.length() - 1))
         && getProjectControl().isOwner()) {
       return true;