Merged revisions 79013 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r79013 | collin.winter | 2010-03-16 19:02:30 -0700 (Tue, 16 Mar 2010) | 1 line

  Fix a trivial class of (hypothetical, future) false-positive refleaks, discovered by an optimization in Unladen Swallow's past (which will become CPython's future).
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Lib/test/regrtest.py

@@ -1010,13 +1010,14 @@ def dash_R(the_module, test, indirect_test, huntrleaks):
     sys.stderr.flush()
     dash_R_cleanup(fs, ps, pic, zdc, abcs)
     for i in range(repcount):
-        rc = sys.gettotalrefcount()
+        rc_before = sys.gettotalrefcount()
         run_the_test()
         sys.stderr.write('.')
         sys.stderr.flush()
         dash_R_cleanup(fs, ps, pic, zdc, abcs)
+        rc_after = sys.gettotalrefcount()
         if i >= nwarmup:
-            deltas.append(sys.gettotalrefcount() - rc - 2)
+            deltas.append(rc_after - rc_before)
     print(file=sys.stderr)
     if any(deltas):
         msg = '%s leaked %s references, sum=%s' % (test, deltas, sum(deltas))