Re: diff manual misses -P

[Bruce Korb]

Jan Engelhardt wrote:
> 
> >> both manual and info pages of "diff" lack the -P option.
> >
> >That is on purpose.  The meaning of -P option may change in the
> >future, for compatibility with other programs that deal with symbolic
> >links.  Portable applications should use --unidirectional-new-file,
> >instead of relying on the old, undocumented -P option.
> 
> Then mention this, that -P is "unused" :)

"deprecated" or "obsolescent" but definitely not "undocumented".  :-)