Colorbar with gap and label

Q&A
1

I create this colorbar with a gap (-L0.1)

years
years1412×106 3.57 KB

and I would like to add a text “Years” (-B+l"Years") like here:

years2
years21505×192 4.25 KB

So I try this but I get an error. How can I do it? Is it a bug?

gmt begin map
  gmt makecpt -T1990/2000/1 -Crainbow
  gmt colorbar -Dx8c/1c+w12c/0.5c+jTC+h -B+l"Years" -L0.1 
gmt end show

colorbar [ERROR]: Option -L: Cannot be used if -B option sets increments.