fix some restrict-qualifier mismatches in newly added interfaces
these should have little/no practical impact but they're needed for
strict conformance.
diff --git a/include/spawn.h b/include/spawn.h
index 92b77f7..29c799e 100644
--- a/include/spawn.h
+++ b/include/spawn.h
@@ -57,8 +57,8 @@
int posix_spawnattr_setschedparam(posix_spawnattr_t *__restrict, const struct sched_param *__restrict);
int posix_spawnattr_getschedparam(const posix_spawnattr_t *__restrict, struct sched_param *__restrict);
-int posix_spawnattr_setschedpolicy(posix_spawnattr_t *__restrict, int);
-int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *__restrict, int *);
+int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
+int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *__restrict, int *__restrict);
int posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);