make the order of the arguments for filterfiles consistent

fix a bug where the order was reversed

contrib/hgk.py

@@ -17,7 +17,7 b' def dodiff(fp, ui, repo, node1, node2, f'
         changes = repo.changes(node1, node2, files, match=match)
     modified, added, removed, deleted, unknown = changes
     if files:
-        modified, added, removed = map(lambda x: filterfiles(x, files),
+        modified, added, removed = map(lambda x: filterfiles(files, x),
                                        (modified, added, removed))
 
     if not modified and not added and not removed:

mercurial/commands.py

@@ -266,7 +266,7 b' def dodiff(fp, ui, repo, node1, node2, f'
         changes = repo.changes(node1, node2, files, match=match)
     modified, added, removed, deleted, unknown = changes
     if files:
-        modified, added, removed = map(lambda x: filterfiles(x, files),
+        modified, added, removed = map(lambda x: filterfiles(files, x),
                                        (modified, added, removed))
 
     if not modified and not added and not removed:

mercurial/hgweb.py

@@ -226,13 +226,13 b' class hgweb(object):'
              yield self.t(t1, tag=t, **args)
 
     def diff(self, node1, node2, files):
-        def filterfiles(list, files):
-            l = [x for x in list if x in files]
+        def filterfiles(filters, files):
+            l = [x for x in list if x in filters]
 
-            for f in files:
-                if f[-1] != os.sep:
-                    f += os.sep
-                l += [x for x in list if x.startswith(f)]
+            for t in filters:
+                if t[-1] != os.sep:
+                    t += os.sep
+                l += [x for x in files if x.startswith(t)]
             return l
 
         parity = [0]
@@ -267,7 +267,7 b' class hgweb(object):'
 
         modified, added, removed, deleted, unknown = r.changes(node1, node2)
         if files:
-            modified, added, removed = map(lambda x: filterfiles(x, files),
+            modified, added, removed = map(lambda x: filterfiles(files, x),
                                            (modified, added, removed))
 
         for f in modified: