tests: fix test-import-t.py

Summary: The rev numbers are almost gone, remove them from the test.

Reviewed By: sfilipco

Differential Revision: D24255156

fbshipit-source-id: 5cbc4a71c2d3f773c5b474d1edce84ceceb50bf9

Author: xavierd

eden/scm/tests/test-import-t.py

@@ -837,7 +837,7 @@ def mkmsg2(path1, path2):
 else:
 
     sh % "hg sum" == r"""
-        parent: 1:28f089cc9ccc 
+        parent: 28f089cc9ccc
          help management of empty pkg and lib directories in perforce
         commit: (clean)
         phases: 2 draft"""