cmdutil: convert terse status result back to an scmutil.status

This is also part of detupling scmutil.status.

Differential Revision: https://phab.mercurial-scm.org/D7397

mercurial/cmdutil.py

@@ -761,7 +761,7 b' def tersedir(statuslist, terseargs):'
         tersedict[st].sort()
         tersedlist.append(tersedict[st])
 
-    return tersedlist
+    return scmutil.status(*tersedlist)
 
 
 def _commentlines(raw):