Merge r1893410, r1893411, r1893414, r1893473, r1893476, r1893478, r1896746, r1896758...

Merge r1893410, r1893411, r1893414, r1893473, r1893476, r1893478, r1896746, r1896758, r1896759, r1896784, r1896785, r1896890, r1896891 from trunk:

ci: print error_log on perl-framework failure.

ci: show non-traceX logs only.

ci: show >debug logs only.

test -n wants a single argument.

More of test -n wants a single argument.

No nullglob with ls..

Try to get more perl-framework traces for the ocsp failure on travis.

Let's see if mod_dumpio gives more ocsp hints..

Revert r1896758 and r1896746 (travis debug temporaries). [skip ci]

Ignore debug logs when checking segfaults. [skip ci]

ocsp failure debugging, still.

OCSP test should pass now, revert r1896785.

Revert r1896715 and r1896740 to restore OCPS test.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1896993 13f79535-47bb-0310-9956-ffa450edef68