[docs] [issue29968] Document that no characters are allowed to proceed \ in explicit line joining

[Jim Fasarakis-Hilliard]

Jim Fasarakis-Hilliard added the comment:

Alternatively, stripping all white-space that proceed `\` could be considered if it seems like a good idea.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29968>
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