[PATCH/RFA] Add -Wformat-zero-length for zero-length format warning

[Joseph S. Myers]

On Sat, 18 May 2002, Jason R Thorpe wrote:

> +@opindex Wformat-zero-length

I think indexing the -Wno-format-zero-length option people will actually 
use is more useful than indexing -Wformat-zero-length.

> +/* Test for printf formats.  Formats using C90 features, including cases
> +   where C90 specifies some aspect of the format to be ignored or where
> +   the behaviour is undefined.
> +*/

This comment taken from some other testcase isn't an accurate description
of what this testcase (a test of -Wno-format-zero-length, not of checking
of printf format features in general) is about.

-- 
Joseph S. Myers
jsm28@cam.ac.uk