clang-format: [Java] Fix formatting of multiple annotations.

Before:
  @SuppressWarnings(value = "unchecked")
  @Author(name = "abc") public void doSomething() {
  }

After:
  @SuppressWarnings(value = "unchecked")
  @Author(name = "abc")
  public void doSomething() {
  }

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@220286 91177308-0d34-0410-b5e6-96231b3b80d8