add server_rec to log.c fatal startup errors

Not strictly necessary for trunk, but in 2.4.x if the main ErrorLog is
using syslog, these messages are lost.  In trunk, the low-level logging
routines reach up and find the syslog provider when no server_rec is provided
but that backport is stalled.




git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1833827 13f79535-47bb-0310-9956-ffa450edef68