Insert APLOG_NOERRNO where appropriate.

Remove needless errstr buffers, can just pass it all to aplog_errno.

Add __attribute__((format(printf,5,6))) to aplog_error so that we get
useful -Wall warnings about bad printf lists to aplog_error.

#define __attribute__(__x)  to be nothing on non-__GNUC__ compilers.

Clean up use of TRANS in http_log.[ch].


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79340 13f79535-47bb-0310-9956-ffa450edef68