Clarify that the ScriptLog is opened by the child processes so

permissions need to be set appropriately.  Perhaps wouldn't hurt
to put an error in the error_log if it can't be opened.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@78111 13f79535-47bb-0310-9956-ffa450edef68