Tue Oct 23 06:09:28 PDT 2007 Simon Marlow <simonmar at microsoft.com>
* FIX #1258: document that openTempFile is secure(ish)
Also change the mode from 0666 to 0600, which seems like a more
sensible value and matches what C's mkstemp() does.
M ./System/IO.hs -1 +14