tests: unify test-revlog-packentry

tests/test-revlog-packentry.t

@@ -1,14 +1,21 b''
-#!/bin/sh
+  $ hg init repo
+  $ cd repo
 
-hg init repo
-cd repo
+  $ touch foo
+  $ hg ci -Am 'add foo'
+  adding foo
+
+  $ hg up -C null
+  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
-touch foo
-hg ci -Am 'add foo'
+this should be stored as a delta against rev 0
 
-hg up -C null
-# this should be stored as a delta against rev 0
-echo foo bar baz > foo
-hg ci -Am 'add foo again'
+  $ echo foo bar baz > foo
+  $ hg ci -Am 'add foo again'
+  adding foo
+  created new head
 
-hg debugindex .hg/store/data/foo.i
+  $ hg debugindex .hg/store/data/foo.i
+     rev    offset  length   base linkrev nodeid       p1           p2
+       0         0       0      0       0 b80de5d13875 000000000000 000000000000
+       1         0      24      0       1 0376abec49b8 000000000000 000000000000