Merge r1830816, r1830836, r1842882, r1842884 from trunk:

Merge r1830816, r1830836, r1842882, r1842884 from trunk:

* modules/ssl: Add some missing logno tags.

* modules/ssl/ssl_engine_pphrase.c (ssl_load_encrypted_pkey):
  Simplify code, no functional change.

* modules/slotmem/mod_slotmem_shm.c (restore_slotmem): Remove
  redundant assignment (clang warning), the apr_file_eof(fp)=>APR_EOF
  case assigns rv to APR_EOF and then to APR_SUCCESS after already.

* modules/mappers/mod_negotiation.c (set_language_quality): Remove
  redundant branch (warning from Coverity).

Submitted by: jorton
Reviewed by: jailletc36, icing, jorton, jim

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1848685 13f79535-47bb-0310-9956-ffa450edef68