This behavior change was introduced by:
commit 0dd59398b3f62288897c8c3405977a27a94fbfee
Author: Dimitri van Heesch
Date: Mon Aug 4 14:07:53 2014 +0200
Bug 734099 - Add support for non-parsed language
which caused the existing hard-coded TRUE showLineNumbers parameter to
FileParser::pars
Sometime around or before doxygen 1.8.8 html format documentation
generated from the \code command started including line numbers. While
in many cases this might be useful, it breaks my use of this command to
provide boilerplate code I expect users to cut and paste because the
line numbers get
