# HG changeset patch
# User Siddharth Agarwal <sid0@fb.com>
# Date 2016-01-02 11:02:57
# Node ID 95dc67f10239e659b47798c6bd137ec0ecc51075
# Parent  198d291e9ffad20abae5e59be7e2f799487a3450

_checkunknownfiles: turn 'conflicts' into a set

We'll check for membership in this set in an upcoming patch.

diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -570,15 +570,15 @@ def _checkunknownfiles(repo, wctx, mctx,
     files. For some actions, the result is to abort; for others, it is to
     choose a different action.
     """
-    conflicts = []
+    conflicts = set()
     if not force:
         for f, (m, args, msg) in actions.iteritems():
             if m in ('c', 'dc'):
                 if _checkunknownfile(repo, wctx, mctx, f):
-                    conflicts.append(f)
+                    conflicts.add(f)
             elif m == 'dg':
                 if _checkunknownfile(repo, wctx, mctx, f, args[0]):
-                    conflicts.append(f)
+                    conflicts.add(f)
 
         for f in sorted(conflicts):
             repo.ui.warn(_("%s: untracked file differs\n") % f)