[MacPorts] #48295: stunnel @5.19_0: update to 5.20

[MacPorts]

#48295: stunnel @5.19_0: update to 5.20
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 Reporter:  mschamschula@…       |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.3.3
 Keywords:  haspatch maintainer  |       Port:  stunnel
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 stunnel has been updated to version 5.20, 2015.07.09, urgency: HIGH

 ** New features

 - poll(2) re-enabled on MacOS X 10.5 and later.
 - Xcode SDK is automatically used on MacOS X if no other locally installed
 OpenSSL directory is found.
 - The SSL library detection algorithm was made a bit smarter.
 - Warnings about insecure authentication were modified to include the name
 of the affected service section.
 - A warning was added to stunnel.init if no pid file was specified in the
 configuration file.
 - Documentation updates.

 ** Bugfixes

 - Signal pipe reinitialization added to prevent turning the main accepting
 thread into a busy wait loop when an external condition breaks the signal
 pipe.  This bug was found to surface on Win32, but other platforms may
 also be affected.
 - Fixed removing the disabled taskbar icon.
 - Generated temporary DH parameters are used for configuration reload
 instead of the static defaults.
 - LSB compatibility fixes added to the stunnel.init script.
 - Fixed the manual page headers.

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Ticket URL: <https://trac.macports.org/ticket/48295>
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