[patch/rfc/6.2] Mention threads in NEWS and PROBLEMS

[Andrew Cagney]

> Looks okay to me, except for the typo: 'occur' rather than 'occure'.
> 
> Also I would say '... did not occur with gdb 6.1' rather than
> '... does not occur with gdb 6.1' but I defer to you on whatever
> verb tense you like better.
> 
> (As an aside, gdb had only two regressions on i686-pc-linux-gnu when the
> branch was cut, and we've got only one now.  This is much better than
> older days when there would be many many more regressions.  I hope by
> next release to cover 2-4 native platforms with regression testing.)

Separatly, what about HP/UX?  Is that a regression or a long standing bug?

Andrew