[perl #131145] Modes for IO::Handle.open need clarification

[Christian Bartolomaeus via RT]

On Thu, 13 Apr 2017 12:21:57 -0700, barto...@gmx.de wrote:
> [...]
> * expand the documentation of "open"

That was done by Zoffix++ with https://github.com/perl6/doc/commit/ca2a3a0bfb