Use os.fsync instead of os.fdatasync because macOS doesn't support fdatasync

Signed-off-by: David Kreitschmann <david@kreitschmann.de>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

ipaclient/plugins/vault.py

@@ -579,7 +579,7 @@ class _TransportCertCache(object):
                 try:
                     f.write(pem)
                     f.flush()
-                    os.fdatasync(f.fileno())
+                    os.fsync(f.fileno())
                     f.close()
                     os.rename(f.name, filename)
                 except Exception:

ipaclient/remote_plugins/schema.py

@@ -476,7 +476,7 @@ class Schema(object):
             try:
                 self._write_schema_data(f)
                 f.flush()
-                os.fdatasync(f.fileno())
+                os.fsync(f.fileno())
                 f.close()
             except Exception:
                 os.unlink(f.name)