tests: unify test-debugrename

tests/test-debugrename.t

@@ -1,17 +1,18 b''
-#!/bin/sh
-
-hg init
-echo a > a
-hg ci -Am t
+  $ hg init
+  $ echo a > a
+  $ hg ci -Am t
+  adding a
 
-hg mv a b
-hg ci -Am t1
-hg debugrename b
+  $ hg mv a b
+  $ hg ci -Am t1
+  $ hg debugrename b
+  b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3
 
-hg mv b a
-hg ci -Am t2
-hg debugrename a
+  $ hg mv b a
+  $ hg ci -Am t2
+  $ hg debugrename a
+  a renamed from b:37d9b5d994eab34eda9c16b195ace52c7b129980
 
-echo % test with --rev
-hg debugrename --rev 1 b
+  $ hg debugrename --rev 1 b
+  b renamed from a:b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3