The Msg builtin snippet renders notices with a comma separated string. This would be really helpful to make this separator configurable.

The specific case which leads to this request is when using phrases as messages (captialized and dot at the end). The current rendering put a comma after the dot, so being able to configure this comma to be a space would be interesting.

link to the discussion: https://groups.google.com/forum/#!topic/liftweb/LH2B4h6D8u0