facebook/hiphop-php — pull request #831 by huzhiguang (2013-06-28 05:49:26+00:00)
Title: support error_log function message_type param 3 mode!

add f_error_log message_type=3 function
hhvm defult error_log message_type 0,so it can't support user-defind error_log mode(message_type=3)