# New Ticket Created by  gfw blackcat 
# Please include the string:  [perl #126349]
# in the subject line of all future correspondence about this issue. 
# <URL: https://rt.perl.org/Ticket/Display.html?id=126349 >


perl6 --version:
This is perl6 version 2015.09 built on MoarVM version 2015.09

source code:

#!/usr/bin/env perl6

my @strs = ("11 22 33", "44 55 66", "77 88 99");

for @strs {
    $_ ~~ s/\s(\S+)\s(\S+)/-$0-$1/;
}

say @strs;

output:
    Use of Nil in string context  in code  at smart_match.p6:6
    Use of Nil in string context  in code  at smart_match.p6:6
    [11-- 44-22-33 77-55-66]

should be:
[11--22--33 44-55-66 77-88-99]

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