Lexical Analysis ref doc: Fix a typo in the string concatenation internal link (GH-5157) (GH-5160)

In lexical analysis reference documentation, the internal link to
the string literal concatenation section was written as`.. _string-catenation:`.
Changed that to `.. _string-concatenation:`.
(cherry picked from commit 3764bb075a)
This commit is contained in:
Miss Islington (bot) 2018-01-11 22:50:45 -08:00 committed by Mariatta
parent 9c99fd163d
commit 22b1050672

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@ -571,7 +571,7 @@ that a single backslash followed by a newline is interpreted as those two
characters as part of the literal, *not* as a line continuation.
.. _string-catenation:
.. _string-concatenation:
String literal concatenation
----------------------------