Permit calling p4-fast-export with a depot path that has the typical ... wildcard at the end.

Signed-off-by: Simon Hausmann <hausmann@kde.org>

contrib/fast-import/p4-fast-export.py

@@ -35,6 +35,9 @@ try:
 except ValueError:
     changeRange = ""
 
+if prefix.endswith("..."):
+    prefix = prefix[:-3]
+
 if not prefix.endswith("/"):
     prefix += "/"