# HG changeset patch
# User Matt Harbison <matt_harbison@yahoo.com>
# Date 2018-09-29 02:18:45
# Node ID 4017968f0a1d7dc581c8a7682c234a1b77f10e92
# Parent  5fe0b880200e006006322c52ccd623ef1daa1469

util: use a context manager in readlock()

diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -1848,10 +1848,8 @@ def readlock(pathname):
             raise
     except AttributeError: # no symlink in os
         pass
-    fp = posixfile(pathname, 'rb')
-    r = fp.read()
-    fp.close()
-    return r
+    with posixfile(pathname, 'rb') as fp:
+        return fp.read()
 
 def fstat(fp):
     '''stat file object that may not have fileno method.'''