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Add missing colon to reserved chars #10075

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Jul 18, 2018
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2 changes: 1 addition & 1 deletion components/cache/cache_items.rst
Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ The **key** of a cache item is a plain string which acts as its
identifier, so it must be unique for each cache pool. You can freely choose the
keys, but they should only contain letters (A-Z, a-z), numbers (0-9) and the
``_`` and ``.`` symbols. Other common symbols (such as ``{``, ``}``, ``(``,
``)``, ``/``, ``\`` and ``@``) are reserved by the PSR-6 standard for future
``)``, ``/``, ``\``, ``@`` and ``:``) are reserved by the PSR-6 standard for future
uses.

The **value** of a cache item can be any data represented by a type which is
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