[Bug c/70883] inconsistent error message for calls to __builtin_add_overflow with too few arguments

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70883

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
      Known to fail|6.0                         |6.1.0

--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch committed in r237268.  It's probably not worth backporting to 6.x branch.