Bug#4073 - Polycom VOIP phones unable to use FTPS data transfers.
Remove unnecessary comment.
The heuristic for disabling sendfile support when implicit FTPS is used does
not need to include the port number; having TLS negotiated at the time
of session initialization is enough.
Merge pull request #19 from proftpd/tls-implicitssl-download-bug4073

Bug#4073 - Polycom VOIP phones unable to use FTPS data transfers.
Update NEWS with mention of Bug#4073.
Remember to set errno if opening the PidFile fails.  This fixes a compiler
warning detected by travis-ci.
Address more travis-ci compiler warnings.
Mention, in the mod_facts docs, how to build that module as a shared module.
Something shifted that is causing mod_ldap login troubles; making some
tweaks to hopefully narrow down the issue.
Link to the DisplayFiles howto for the SFTPDisplayBanner directive, to better
illustrate which variables are supported.
Merge branch 'master' into auth-addl-failure-reasons-bug4070