lintian: Add in explicit source format.

Change-Id: I05f7be162f38ccb2ecfd7f131d35f4f08ed4bfc8
(cherry picked from commit 4bb0789990bd6ce05c1880376f9b0045902eca86)
1 file changed
tree: bcc67c843e83daab86f409e2a03c3971877a2bd7
  1. debian/