Log Message:
msmtp: Update to 1.8.2

Changes:
Version 1.8.2:
- To simplify TLS setup, the tls_trust_file command has a new default value
  'system' that selects the system default trust. Now you just need tls=on to
  use TLS; the other TLS options are only required in special cases.
  To make this work without breaking compatibility with older msmtp versions,
  tls_fingerprint now overrides tls_trust_file, and tls_certcheck=off overrides
  both (previously, you could not specify contradicting options).
- To simplify setup, a new option '--configure <mailaddress>' was added that
  automatically generates a configuration file for a given mail address.
  However, this only works if the mail domain publishes appropriate SRV records.

Version 1.8.1:
- Fixed our TLS code to support TLS 1.3 with GnuTLS.