CI: Hopefully fix caching and artifact uploads by creating $JOBID
as a unique key for each job in the matrix, using that as the 
cache key and in each artefact upload (otherwise multiple failures
uploading "error_log" overwrite each other).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1916051 13f79535-47bb-0310-9956-ffa450edef68
1 file changed