[docs] [issue30021] Add examples for re.escape()

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset 53ad68434ce914defcc1b734cce4b9b4d79ca3fc by Serhiy Storchaka in branch '2.7':
bpo-30021: Add examples for re.escape(). (#1048) (#1118)
https://github.com/python/cpython/commit/53ad68434ce914defcc1b734cce4b9b4d79ca3fc


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