Template plugin doesn't handle ignores properly [rt.cpan.org #82937]

[Sawyer X]

https://rt.cpan.org/Ticket/Display.html?id=82937

ignores_guts in the Template plugin doesn't pay attention to the ignores
type passed to it, always using the "ignores" file.  The attached patch
against 1.60 uses $type as a filename, falling back to "ignores" if it
is not available.