Re (chip): Two-arg open() considered dangerous

[chip]

Damn. I had no idea that there were systems that broken that could still run a modern Perl.

    -- Chip Salzenberg, Free-Floating Agent of Chaos

[ichimunki]

Either way, it's more readable with the explicit constant names exported by Fcntl, which is good for all those coders coming to your code from a two-arg open() mentality/background.