braces around loop, proper spacing

// FREEBIE

src/org/thoughtcrime/securesms/ConversationFragment.java

@@ -494,8 +494,9 @@ public class ConversationFragment extends SherlockListFragment
 
       int i = 0;
       File file = new File(outputDirectory, base + "." + extension);
-      while (file.exists())
+      while (file.exists()) {
         file = new File(outputDirectory, base + "-" + (++i) + "." + extension);
+      }
 
       return file;
     }