Make overlay the default style

diff --git a/git-graph b/git-graph
index c74d234..bf3df90 100755 (executable)
--- a/git-graph
+++ b/git-graph
@@ -16,7 +16,7 @@ GetOptions(\%opt, qw{
        stack|s
 }) or exit 1;
 
        stack|s
 }) or exit 1;
 

-$opt{stack} = 1 unless $opt{cancel} or $opt{overlay};
+$opt{overlay} = 1 unless $opt{cancel} or $opt{stack};

 
 my @terminal = GetTerminalSize;
 my $width = $terminal[0] - 11;
 
 my @terminal = GetTerminalSize;
 my $width = $terminal[0] - 11;