
Fixup __libc_open to use varargs and match the prototype.

On the H8 varargs are rather unusual and if you declare a function with
varargs,  it had better use them or it won't work.

joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc,joel-porquet/tsar-uclibc