set_smf_env
env = set_smf_env(mthd_ctxt, instance, methods[method].name);
char **set_smf_env(struct method_context *, instance_t *, const char *);
nenv = set_smf_env(NULL, 0, pathenv, NULL, NULL);
nenv = set_smf_env(mcp->env, mcp->env_sz, NULL, inst,
char **set_smf_env(char **, size_t, const char *,