*) mod_http2: internal code cleanups and simplifications. Common output code for

     h2 and h2c protocols, using nested mutex locks for simplified calls. [Stefan Eissing]



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1859724 13f79535-47bb-0310-9956-ffa450edef68