Merge r1731929, r1736681 from trunk:

Join multi-line MPM startup log messages into
single long lines.

Followup to r1725394 and r1725548.

Fix missing space in log message

Submitted by: rjung, jailletc36
Reviewed by: jailletc36, ylavic, wrowe



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1737361 13f79535-47bb-0310-9956-ffa450edef68