# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 2017-05-06 05:40:22
# Node ID 526f9f12f707d38889817f9ebc6f42f35e1e62ff
# Parent  3abba5bc34546951b11b1bd3f5e5c77b90d950d1

formatter: close raw template file explicitly

diff --git a/mercurial/formatter.py b/mercurial/formatter.py
--- a/mercurial/formatter.py
+++ b/mercurial/formatter.py
@@ -399,7 +399,8 @@ def lookuptemplate(ui, topic, tmpl):
         # is it a mapfile for a style?
         if os.path.basename(tmpl).startswith("map-"):
             return None, os.path.realpath(tmpl)
-        tmpl = open(tmpl).read()
+        with open(tmpl) as f:
+            tmpl = f.read()
         return tmpl, None
 
     # constant string?