Fix typo.

Kami · Kami · commit b9a431bbc0cb · 2018-06-11T12:05:27.000+02:00
diff --git a/.circle/validate.py b/.circle/validate.py
@@ -26,7 +26,7 @@
 
 
 def load_yaml_file(path):
-    with file(path, 'r') as stream:
+    with open(path, 'r') as stream:
         text = yaml.load(stream)
 
     return text
