Issue #7082: When falling back to the MIME 'name' parameter, the
correct place to look for it is the Content-Type header.

Patch by Darren Worrall.
diff --git a/Lib/email/message.py b/Lib/email/message.py
index 129f4ba..db09dee 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -674,7 +674,7 @@
         missing = object()
         filename = self.get_param('filename', missing, 'content-disposition')
         if filename is missing:
-            filename = self.get_param('name', missing, 'content-disposition')
+            filename = self.get_param('name', missing, 'content-type')
         if filename is missing:
             return failobj
         return utils.collapse_rfc2231_value(filename).strip()