perl version oddity

diff --git a/test/runtest b/test/runtest
index 27027bda91ecaa816ebded73cba91927255439c6..f626cb4ee16c6793c46d5fbc195b6adf4e31b3b2 100755 (executable)
--- a/test/runtest
+++ b/test/runtest
@@ -120,7 +120,7 @@ my $parm_hostname;
 my $re_ipv4 = qr/\d{1,3}(?:\.\d{1,3}){3}/;
 my $re_6g = qr/[[:xdigit:]]{1,4}/;
 my $re_6s = qr/${re_6g}:/;
-my $re_ipv6 = qr/${re_6s}{,7}${re_6g}(?:::${re_6s}{,5}${re_6g})?/;
+my $re_ipv6 = qr/(?:${re_6s}){,7}${re_6g}(?:::(?:${re_6s}){,5}${re_6g})?/;
 my $re_ip = qr/(?:${re_ipv4}|${re_ipv6})/;
 
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