Small documentation bug

[Harry Putnam]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

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Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Attempting to find a forgotten key command to format code in a region.

Searchs under index search or `s' (regex) with string `format' should
lead to it at some point.  The command is indent-region (C-M-\)

At least in my feeble mind the process is more accurately described
as `formatting'.  All I'm suggesting here is that the word `format' or a
derivative be added into the text where this command is documented
so searches on `format' will find it.