Refresh Python/importlib.h and Python/importlib_external.h (#464)

diff --git a/Python/importlib_external.h b/Python/importlib_external.h
index 2f40978..886aa68 100644
--- a/Python/importlib_external.h
+++ b/Python/importlib_external.h
@@ -578,7 +578,7 @@
     218,17,95,102,105,110,100,95,109,111,100,117,108,101,95,115,
     104,105,109,157,1,0,0,115,10,0,0,0,0,10,14,1,
     16,1,4,1,22,1,114,127,0,0,0,99,4,0,0,0,
-    0,0,0,0,11,0,0,0,22,0,0,0,67,0,0,0,
+    0,0,0,0,11,0,0,0,19,0,0,0,67,0,0,0,
     115,136,1,0,0,105,0,125,4,124,2,100,1,107,9,114,
     22,124,2,124,4,100,2,60,0,110,4,100,3,125,2,124,
     3,100,1,107,9,114,42,124,3,124,4,100,4,60,0,124,