realpath() is now applied to filename
realpath() is now applied to filename

In case the main process changes it's working directory after the
worker has been forked, we perform realpath() on file being opened in
the main process, passing the full pathname to the worker.

Lupus/libevfibers,JohnPJenkins/libevfibers,JohnPJenkins/libevfibers,Lupus/libevfibers,JohnPJenkins/libevfibers,Lupus/libevfibers