auth2_methods_valid
int auth2_methods_valid(const char *, int);
if (auth2_methods_valid(options.auth_methods[i], 1) != 0) {
} else if (auth2_methods_valid(arg, 0) != 0) {
if (auth2_methods_valid(options.auth_methods[i],
if (auth2_methods_valid(options.auth_methods[i],