Reduce indentation in warn_on_mismatching_name
Reduce indentation in warn_on_mismatching_name

Why: Makes it easier to read IMO.

xavfernandez/pip,pfmoore/pip,pfmoore/pip,xavfernandez/pip,pypa/pip,sbidoul/pip,sbidoul/pip,xavfernandez/pip,pradyunsg/pip,pradyunsg/pip,pypa/pip