when we bail out due to a fatal error in apr_shm_init(), be sure

when we bail out due to a fatal error in apr_shm_init(), be sure
to print the apr_status_t in numeric form

the old message

lt-httpd: could not open(create) scoreboard: Unknown resolver error

wasn't so useful, but the new, improved message

lt-httpd: could not open(create) scoreboard: (22528)Unknown resolver error

makes it look like a syscall is returning ENOSPC and that apr shmem
is returning (APR_OS_START_SYSERR + errno) instead of simply errno.

off to APR land...

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@90814 13f79535-47bb-0310-9956-ffa450edef68