The parameters 'diff_peek' and 'validate' are not expected to be used
by users. They are internal. To make it clear, this change adds the
comments 'Internal use only' to each of those definitions to make
it clear that they are actually used, just not by end-users.
The 'diff_peek' option isn't documented at all, and provides a
rudimentary check that the content isn't binary. Documentation is
added to explain the option.
The 'validate' option has a declaration, but isn't implemented.
Therefore it may as well be removed from the module.
If we try to make a directory, but someone else creates the directory
at the same time as us, we don't need to raise that error to the user.
They asked for the directory to exist, and now it does. This fixes
the race condition which was causing that error to be raised, and
closes#1648.
Charles Ferguson
varnav
Brian Coca
Matthew Gilliard
Greg DeKoenigsberg
Tristan Fisher
Greg Taylor
James Bowes
Toshio Kuratomi
Rahul Mehrotra
Jesse Buchanan
sysadmin75
Michael DeHaan