util.py: replace file() with open()

open() is the standard way to open a file in python.

Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

test/pacman/util.py

@@ -100,7 +100,7 @@ def mkfile(base, name, data=""):
 def writedata(filename, data):
     if isinstance(data, list):
         data = "\n".join(data)
-    fd = file(filename, "w")
+    fd = open(filename, "w")
     if data:
         fd.write(data)
         if data[-1] != "\n":