Unit Tests

- All tests (I hope) now properly remove completed.data on exit, which
  should prevent certain non-deterministic tinderbox results caused by
  residual data.

src/tests/dependencies.t

@@ -28,7 +28,7 @@
 
 use strict;
 use warnings;
-use Test::More tests => 31;
+use Test::More tests => 32;
 
 # Create the rc file.
 if (open my $fh, '>', 'dep.rc')