Added code-smell check to verify filenames are allowed with Windows (#35436)

docs/docsite/rst/dev_guide/testing/sanity/no-illegal-filenames.rst

@@ -0,0 +1,61 @@
+Sanity Tests » no-illegal-filenames
+===================================
+
+Files and directories should not contain illegal characters or names so that
+Ansible can be checked out on any Operating System.
+
+Illegal Characters
+------------------
+
+The following characters are not allowed to be used in any part of the file or
+directory name;
+
+* ``<``
+* ``>``
+* ``:``
+* ``"``
+* ``/``
+* ``\``
+* ``|``
+* ``?``
+* ``*``
+* Any characters whose integer representations are in the range from 0 through to 31 like ``\n``
+
+The following characters are not allowed to be used as the last character of a
+file or directory;
+
+* ``.``
+* ``" "`` (just the space character)
+
+Illegal Names
+-------------
+
+The following names are not allowed to be used as the name of a file or
+directory excluding the extension;
+
+* ``CON``
+* ``PRN``
+* ``AUX``
+* ``NUL``
+* ``COM1``
+* ``COM2``
+* ``COM3``
+* ``COM4``
+* ``COM5``
+* ``COM6``
+* ``COM7``
+* ``COM8``
+* ``COM9``
+* ``LPT1``
+* ``LPT2``
+* ``LPT3``
+* ``LPT4``
+* ``LPT5``
+* ``LPT6``
+* ``LPT7``
+* ``LPT8``
+* ``LPT9``
+
+For example, the file ``folder/COM1``, ``folder/COM1.txt`` are illegal but
+``folder/COM1-file`` or ``folder/COM1-file.txt`` is allowed.
+