[docs] [issue19175] Erroneous reference to "integer" in format string grammar

[Georg Brandl]

Georg Brandl added the comment:

The bug is that "integer" links to the "integer" production in the Python grammar.  This shouldn't happen; I'll have a look on the Sphinx side.

As a workaround, "integer" can be replaced by "digit+" as requested (it occurs twice).

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nosy: +georg.brandl

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<http://bugs.python.org/issue19175>
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