Fix handling of manpage references divided by hyphenation

* lisp/man.el (Man-reference-regexp): Accept a newline as part
of a manpage name only if it's preceded by a hyphen.  (Bug#34286)
(Man-translate-references): Adapt to change in
'Man-reference-regexp'.
(Man-default-man-entry): Support references divided between
two lines by an ASCII hyphen.  This is a left-over from fixing
bug#6289.
1 job for emacs-26 in 25 minutes and 58 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #827
test

00:25:58