flipped the if/else for performance optimization

src/com/owncloud/android/utils/DisplayUtils.java

@@ -210,10 +210,10 @@ public class DisplayUtils {
 
         String[] parts = dateString.toString().split(",");
         if (parts.length == 2) {
-            if(parts[0].contains(":") && !parts[1].contains(":")) {
-                return parts[1];
-            } else if(parts[1].contains(":") && !parts[0].contains(":")) {
+            if (parts[1].contains(":") && !parts[0].contains(":")) {
                 return parts[0];
+            } else if (parts[0].contains(":") && !parts[1].contains(":")) {
+                return parts[1];
             }
         }
         //dateString contains unexpected format. use localized, absolute date.