Disable whitespace/braces for blocks after multi-line OpenMP directives #294

For OpenMP one-line directives before code blocks, cpplint works great, e.g.:

#pragma omp parallel num_threads(thread_count)
{
  // Concurrent instructions here
}

But if your pragma exceeds 80 chars and you slice it escaping the new line, e.g.:

#pragma omp parallel num_threads(thread_count) \
    default(none) shared(std::cout, thread_count)
{
  // Concurrent instructions here
}

you will get a cpplint diagnostic:

your.cpp:3:  { should almost always be at the end of the previous line  [whitespace/braces]

It would be fantastic if you add support for multi-line pragma directives.
Thank you very much in advance!