Why are the exec* functions deprecated in std.process?

[Lars T. Kyllingstad]

On Tuesday, 29 October 2013 at 03:44:37 UTC, Andrei Alexandrescu 
wrote:
> 2. The homonym (not homonymous btw) functions [...]

Going OT here, but being somewhat of a pedant when it comes to 
grammar myself, I can't just let this go. :)  What is wrong with 
this use of "homonymous"?  What would be an example of 
appropriate use?

Lars