Log Message:
Updated database/mysql55-{client,server} to 5.5.56
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(From https://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-56.html)

Changes in MySQL 5.5.56 (2017-05-02, General availability)

Binary packages for MySQL 5.5.56 are identical to those for MySQL
5.5.55, except for the version number. The change in 5.5.56 for Bug
#25942414 is applicable only to those who build from source.

Security Notes

  For the WITH_SSL CMake option, no is no longer a permitted value or
the default value. The default is now bundled. Consequently, MySQL now
is always built with SSL support. (Bug #25942414)
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(pkgsrc changes)
- Removed ssl option both from PKG_{SUPPORTED,SUGGESTED}_OPTIONS.
  This may give error if ssl is explicitly designated, but I believe
  that is the (kind of) upstream intension.
  (or left ssl in SUPPORTED and ignore it ?)