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bug#36418: 26.2.90; mapconcat "SEPARATOR must be a string." is incorrect


From: Eli Zaretskii
Subject: bug#36418: 26.2.90; mapconcat "SEPARATOR must be a string." is incorrect
Date: Sat, 06 Jul 2019 10:32:51 +0300

> From: Stefan Kangas <address@hidden>
> Date: Sat, 6 Jul 2019 06:17:08 +0200
> Cc: address@hidden
> 
> > C-h S mapconcat says
> >
> >> SEPARATOR, which also must be a string, or a vector or list of
> >> characters.
> >
> > C-h f concat says
> >
> >> Each argument may be a string or a list or vector of characters (integers).
> 
> In other words, since SEPARATOR can be a "list of characters", it
> follows that it can also be nil (which is equivalent to the empty list).

Right, I fixed the doc string.





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