flac dev - May 2016 - [PATCH] "iff" instead of "if" in comments

I noticed that there are several comments with "iff" word
instead of "if", and it looks like typos to me. The patch is attached.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: iff_if.patch
Type: application/octet-stream
Size: 3787 bytes
Desc: not available
URL:
<http://lists.xiph.org/pipermail/flac-dev/attachments/20160501/79d2e6d0/attachment.obj>

lvqcl wrote:
> I noticed that there are several comments with "iff" word
> instead of "if", and it looks like typos to me. The patch is
attached.
"Iff" is commonly-used shorthand for the mathematical "if and
only if",
e.g., "returns true iff stat() succeeds for both files and they have the 
same device and inode" means it *won't* return true unless all of those
conditions are satisfied.

Timothy B. Terriberry <tterribe at xiph.org> писал(а) в своём письме Sun,
01 May 2016 19:29:42 +0300:
> "Iff" is commonly-used shorthand for the mathematical "if
and only if",
> e.g., "returns true iff stat() succeeds for both files and they have
the
> same device and inode" means it *won't* return true unless all of
those
> conditions are satisfied.
Wow. Didn't knew this.