API: scan_script_header_err_core() now "public" and renamed

     ap_scan_script_header_err_core()
PR:
Obtained from:
Submitted by:	Doug MacEachern
Reviewed by:	Ralf


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@81873 13f79535-47bb-0310-9956-ffa450edef68