keyword: make status test after record and kwexpand/kwshrink reliable

This guarantees test failure when the dirstate code is omitted at
the end of the kwtemplater.overwrite method.

kwexpand/kwshrink:
Without a 1 second wait the test succeeds sometimes, even when
the dirstate of the overwritten file is not forced to normal.

record:
status after recording an added file allows to check whether
normallookup is needed after overwriting.

tests/test-keyword.t

@@ -444,6 +444,8 b' record added file alone'
   r
   committed changeset 3:899491280810
   overwriting r expanding keywords
+ - status call required for dirstate.normallookup() check
+  $ hg status r
   $ hg --verbose rollback
   repository tip rolled back to revision 2 (undo commit)
   working directory now based on revision 2
@@ -834,6 +836,8 b' kwexpand/kwshrink on selected files'
   $ hg copy a x/a
   $ hg --verbose kwshrink a
   overwriting a shrinking keywords
+ - sleep required for dirstate.normal() check
+  $ sleep 1
   $ hg status a
   $ hg --verbose kwexpand a
   overwriting a expanding keywords