There is nothing in ubuntu-dev-tools that is required to use, it is for
convenience, so depends is excessive. I think suggests is quite
reasonable. There are (as previously mentioned) people who don't use
u-d-t, so it would be perhaps a bit unfriendly to drag it in automatically
(devscripts does not recommend u-d-t in Ubuntu, it did briefly, but there
were too many complaints and I think this is similar).
There is nothing in ubuntu-dev-tools that is required to use, it is for
convenience, so depends is excessive. I think suggests is quite
reasonable. There are (as previously mentioned) people who don't use
u-d-t, so it would be perhaps a bit unfriendly to drag it in automatically
(devscripts does not recommend u-d-t in Ubuntu, it did briefly, but there
were too many complaints and I think this is similar).