DumpFile() third argument is deprecated and doesn't exists anymore in 3.x

mickaelandrieu · web-flow · commit 155e48b7af1b · 2016-08-23T11:50:06.000+02:00
diff --git a/components/filesystem.rst b/components/filesystem.rst
@@ -252,8 +252,6 @@ complete new file (but never a partially-written file)::
 
 The ``file.txt`` file contains ``Hello World`` now.
 
-A desired file mode can be passed as the third argument.
-
 Error Handling
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