Patch to add snprintf/vsnprintf to libiberty [take 3]

[Joseph S. Myers]

On Wed, 16 Apr 2003, Kaveh R. Ghazi wrote:

> 2.  I added embedded documentation.

The embedded documentation fails to document the return value.  It should
document the return value, while noting that the existence of system
libraries which implement snprintf but with a pre-C99 return value means
that users of snprintf can't generally rely on the return value.

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