Depending on the timing, the conneciton on lisrv listener may be fully
accepted before any reject. Thus, instead of getting a socket error, an
invalid L7 response is reported. There is no reason to be strick on the
error type. Any failure is good here, because we just want to test the
email-alert feature.
This patch should fix issue #1857. It may be backported as far as 2.2.
The info field in the log message may change. For instance, on FreeBSD, a
"broken pipe" is reported. Thus, the expected log message must be more
generic.
Some reg tests and their dependencies have been renamed. They may be
referenced by the .vtc files. So, this patch modifies also the references
to these dependencies.
