#4 output(print_to => *FH) fails on win32

[Anonymous]

Trying to use $tmpl->output(print_to => *FHANDLE) under
win32 fails. It skips any filters defined in the
->new() arguments, and does not write output to disk.

Given that print FHANDLE $tmpl->output() is a
reasonable alternative, perhaps this should just be
noted in the documentation.