Backport from trunk:

  *) Support the suppress-error-charset setting, as with Apache 1.3.x.
     PR 31274.

Reviewed by: jorton, nd



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.0.x@240425 13f79535-47bb-0310-9956-ffa450edef68