[docs] [issue8402] Add a function to escape metacharacters in glob/fnmatch

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

It is good, if stdlib has function for escaping any special characters, even if this function is simple. There are already escape functions for re and sgml/xml/html.

Private function glob.glob1 used in Lib/msilib and Tools/msi to prevent unexpected globbing in parent directory name. ``glob.glob1(dirname, pattern)`` should be replaced by ``glob.glob(os.path.join(fnmatch.escape(dirname), pattern)`` in external code.

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<http://bugs.python.org/issue8402>
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