There's no need to special case SVt_NULL in the print code, as it's

There's no need to special case SVt_NULL in the print code, as it's
only 0.01% of the cases called, and the call to SvPV_const() will
issue the same warning and return the same empty string result for us.
Unfortunately changing the switch statement to an if results in lots of
whitespace changes, hence this change appears much larger than it is.

p4raw-id: //depot/perl@30298