You're using the m// in scalar context, so it is returning true on success instead of your captured text (see perlop). Separate the two statements: 
print map { m/(.+)/; $1 . "\n" } sort @array;

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You could use a join in there, too.

In reply to Re: Using map to Add a Line Breaks to a List by bobf
in thread Using map to Add a Line Breaks to a List by goober99

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