[Buildbot] #2889: Check HMAC in github change hook

[Buildbot trac]

#2889: Check HMAC in github change hook
-----------------------------+--------------------
Reporter:  bgilbert          |       Owner:
    Type:  enhancement       |      Status:  new
Priority:  patches-accepted  |   Milestone:  0.9.+
 Version:  0.8.9             |  Resolution:
Keywords:  github, hook      |
-----------------------------+--------------------

Comment (by VZ):

 Thanks for both of your answers! I can confirm that just replacing
 `github.py` from my Debian buildbot 0.8.9 package with the version from
 comment:4 makes everything work with the configuration using
 {{{
 #!python
             change_hook_dialects={
                 "github": {
                     "strict": True,
                     "secret": "password",
                 }
             }
 }}}

--
Ticket URL: <http://trac.buildbot.net/ticket/2889#comment:6>
Buildbot <http://buildbot.net/>
Buildbot: build/test automation