When Keystone is configured under mod_wsgi, Keystone configuration
requires debugging to be enabled as the debug flag cannot be passed
via cli arguments.
Because Apache 2.2 (default for a number of distributions) does not
support passing an explicit format to the ErrorLog, Keystone under
mod_wsgi ends up with duplicated timestamps in the Keystone log.
This patchset eliminates the %(asctime) and %(msecs) substitution
targets from the log format options when Keystone is configured
under mod_wsgi.
Change-Id: I0bf32db6e53cb653921162cb1957eb988b819815
2c2b1cccc9