[java] fixed the format of DriverService

Author: joerg1985

java/src/org/openqa/selenium/remote/service/DriverService.java

@@ -222,7 +222,7 @@ public void start() throws IOException {
                       ? StartOrDie.PROCESS_DIED
                       : StartOrDie.PROCESS_IS_ACTIVE;
                 } catch (InterruptedException ex) {
-                   return null;
+                  return null;
                 }
               },
               executorService);