Ran formatter and fixed some lint issues

database/packr_source.go

@@ -12,7 +12,7 @@ import (
 )
 
 type Packr2Source struct {
-	Box  *packr.Box
+	Box        *packr.Box
 	Migrations *source.Migrations
 }
 
@@ -88,4 +88,4 @@ func (s *Packr2Source) ReadDown(version uint) (r io.ReadCloser, identifier strin
 			migration.Identifier,
 			nil
 	}
-}
+}