churn: correct output when run in subdirectories

hgext/churn.py

@@ -24,7 +24,7 b' def maketemplater(ui, repo, tmpl):'
 
 def changedlines(ui, repo, ctx1, ctx2, fns):
     lines = 0
-    fmatch = cmdutil.match(repo, pats=fns)
+    fmatch = cmdutil.matchfiles(repo, fns)
     diff = ''.join(patch.diff(repo, ctx1.node(), ctx2.node(), fmatch))
     for l in diff.split('\n'):
         if (l.startswith("+") and not l.startswith("+++ ") or

tests/test-churn

@@ -28,11 +28,13 b' echo def > d/g/f2.txt'
 hg ci -Am "add d/g/f2.txt" -u user1 -d 13:00 d/g/f2.txt
 
 echo % churn separate directories
-hg churn d/e
+cd d
+hg churn e
 echo % churn all
 hg churn
 echo % churn up to rev 2
 hg churn -r :2
+cd ..
 echo % churn with aliases
 cat > ../aliases <<EOF
 user1 alias1