[PATCH]: Add some missing format attributes

[Kaveh R. Ghazi]

 > Found a couple of places where we could use format attributes.
 > Bootstrapped on x86_64-unknown-linux-gnu, ok for mainline?
 > 
 > 2005-05-27  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 > 
 > 	    * diagnostic.h (verbatim): Move ...
 > 	    * toplev.h (verbatim): ... here.  Add ATTRIBUTE_GCC_DIAG.
 > 	    * pretty-print.h (pp_verbatim): Add ATTRIBUTE_GCC_PPDIAG.

Approved by Gaby offline, installed.

--
Kaveh R. Ghazi			ghazi@caip.rutgers.edu