SimTk/openmm — pull request #598 by swails (2014-08-22 12:45:22+00:00)
Title: Improve warning messages coming from the CHARMM parsers.

If a dihedral type was 'replaced', this warning used to be issued:

```
/usr/local/openmm/dev/openmm/python2.7/simtk/openmm/app/charmmparameterset.py:347: UserWarning: Replacing dihedral with
```

This is a pretty useless message. With this change, it now reads:

```
/usr/local/openmm/dev/openmm/python2.7/simtk/openmm/app/charmmparameterset.py:347: UserWarning: Replacing dihedral with
```