configure: don't use "with" for Python 2.5 and older

diff --git a/configure b/configure
index 1a94251..ef34cf8 100755 (executable)
--- a/configure
+++ b/configure
@@ -342,8 +342,8 @@ pprint.pprint(output, indent=2)
 def write(filename, data):
   filename = os.path.join(root_dir, filename)
   print "creating ", filename
-  with open(filename, 'w+') as f:
-    f.write(data)
+  f = open(filename, 'w+')
+  f.write(data)
 
 write('config.gypi', "# Do not edit. Generated by the configure script.\n" +
   pprint.pformat(output, indent=2))