remove tautological condition (closes #22954)

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branch : 2.7
extra : source : a498e599ce6aab4901ffbc85f4fe7c19b8ed5d93
pydoc: Add a note about setting PAGER to affect console output pagination.

Suggested by James Lowden on docs@.

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branch : 2.7
extra : source : 589c65dc528cab7245f038c616fe254c591fa1cb
Issue #22609: Constructors and update methods of mapping classes in the
collections module now accept the self keyword argument.

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branch : 2.7
Issue #21514: The documentation of the json module now refers to new JSON RFC
7159 instead of obsoleted RFC 4627.

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branch : 2.7
Issue #18905: "pydoc -p 0" now outputs actually used port.  Based on patch by
Wieland Hoffmann.

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branch : 2.7
Issue #22314: pydoc now works when the LINES environment variable is set.

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branch : 2.7
Issue #21280: Fixed a bug in shutil.make_archive() when create an archive of
current directory in current directory.

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branch : 2.7