Fix issue 5230 by having pydoc's safeimport check to see if the import
error was thrown from itself in order to decide if the module can't be
found.  Thanks to Lucas Prado Melo for collaborating on the fix and tests.
diff --git a/Misc/ACKS b/Misc/ACKS
index 82cd4a3..5cc07e5 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -479,6 +479,7 @@
 Craig McPheeters
 Lambert Meertens
 Bill van Melle
+Lucas Prado Melo
 Luke Mewburn
 Mike Meyer
 Steven Miale