[MTT users] MTT: Unescaped left brace in regex is deprecated

[Adrian Reber]

After updating my MTT system to Fedora 23 I get:

Unescaped left brace in regex is deprecated, passed through in regex; marked by 
<-- HERE in m/^\$VAR\d+ = { <-- HERE \s*$/ at 
/home/adrian/mtt/lib/MTT/Reporter/MTTDatabase.pm line 581.

This is with perl-5.22.0-349.fc23.ppc64

                Adrian