document that goto-EXPR will treat a subref differently

This has been the case since Perl 5.8 at least, and possibly longer.

This resolves [perl #118523].
replace weird C<goto-TYPE> with C<goto TYPE>

the hyphenated form dates to a0d0e21, the Perl 5.000 commit

nothing else looks this way, and the difference seems to win
us nothing
perldelta: note the change to "goto" in perlfunc