[PATCH] update doc cross reference to GCC

[Eli Zaretskii]

> Date: Fri, 23 Mar 2007 16:22:43 -0700
> From: Bob Wilson <bwilson@tensilica.com>
> 
> These two references to a section in the GCC docs need updating.  Both the 
> section name and the GCC doc title have changed.
> 
> OK?
> 
> 2007-03-23  Bob Wilson  <bob.wilson@acm.org>
> 
> 	* gdb.texinfo (Variables, C): Update cross reference to GCC docs.

Thanks, please commit this.