[issue11931] Regular expression documentation patch

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

The section heads should remain in title case.

The colon in the octal escape section should remain, but the "If" following it should be lower cased.

"Phonebook" should remain a single word.

"vs" is fine without the period in a section head.

It would be better to replace all of the "e.g." and "i.e" with "for example" and "such as".

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nosy: +rhettinger

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<http://bugs.python.org/issue11931>
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