* collect2.c (error): Fix typo in declaration.
        * cpperror.c (cpp_message): Likewise.
        * cpplib.c (cpp_warning): Likewise.
        * cpplib.h (cpp_notice): Use PVPROTO not VPROTO, also add
        ATTRIBUTE_PRINTF_1.
        * toplev.c (error): Fix typo in declaration.

From-SVN: r24904