[MacPorts] #59927: bison: update to 3.8

[MacPorts]

#59927: bison: update to 3.8
------------------------+----------------------
  Reporter:  ballapete  |      Owner:  mascguy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  bison      |
------------------------+----------------------

Comment (by akimd):

 Gosh:
 {{{
   -(       -       atan    cos     exp     ln      number  sin     sqrt
   +(       -       atan    cos     exp     ln      number  sin     sqr
 }}}

 so it seems that that sed does not grok `\t`, and instead of removing the
 tab, it deleted the `t`...  Which is still magical to me, since the
 pattern was `s/\t$//g`, i.e., it requires the `t` to be last in the line
 to fire, and the whole problem is precisely that that character was not
 last in the line: there are trailing spaces...

 On second thought, it appears I was wrong believing we had a spurious tab,
 it's actually padding with white spaces.

 I have adjusted `examples/test` to kill trailing spaces.  Could you please
 try it?  I expect test 14 to pass, and the following ones too.  Thanks!

 -
 https://www.lrde.epita.fr/~akim/private/bison/bison-3.7.6.356-fed2.tar.gz
 -
 https://www.lrde.epita.fr/~akim/private/bison/bison-3.7.6.356-fed2.tar.lz
 -
 https://www.lrde.epita.fr/~akim/private/bison/bison-3.7.6.356-fed2.tar.xz

-- 
Ticket URL: <https://trac.macports.org/ticket/59927#comment:57>
MacPorts <https://www.macports.org/>
Ports system for macOS