Stop ignoring RPMs in distutils' upload command (#2945).

Bug reported by Hartmut Goebel and patch contributed by Carl Robben.
Carl tested the fix and we have a buildbot with rpm installed, so I’m
committing even though I could not run this test (but I do understand
the changed code :)
diff --git a/Misc/ACKS b/Misc/ACKS
index 24f3f45..bad11ae 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -765,6 +765,7 @@
 Juan M. Bello Rivas
 Davide Rizzo
 Anthony Roach
+Carl Robben
 Mark Roberts
 Jim Robinson
 Andy Robinson