'cfg=s' => sub { $opts{'cfg'} .= " --cfg=$_[1]" },
'log=s' => sub { $opts{'log'} .= " --log=$_[1]" },
'enable-coverage+' => \$enable_coverage,
'cfg=s' => sub { $opts{'cfg'} .= " --cfg=$_[1]" },
'log=s' => sub { $opts{'log'} .= " --log=$_[1]" },
'enable-coverage+' => \$enable_coverage,