AthenaCommon: change default verbosity of `include`
The default verbosity of the include
function was to show the trace of
the included files. However, at least in athena.py
the tracing is set
based on the command line and here the default is to not show traces.
For the HLT where we don't use athena.py
it is more convenient to have
the tracing disabled by default and enable it when needed.
Overall having the tracing disabled by default seems the more logical
default setting. Since include
is very likely only ever used within
athena.py
this change should have no visible impact.