[gpsd-dev] current nits

[Greg Troxel]

(I am not saying this needs to be fixed for release.)

cons sconsclean throus an error.  I do have .sconsign.tmp after this.

FileNotFoundError: [Errno 2] No such file or directory: '.sconsign.dblite':
  File "/usr/pkg/lib/scons/SCons/Script/Main.py", line 1374:
    _exec_main(parser, values)
  File "/usr/pkg/lib/scons/SCons/Script/Main.py", line 1337:
    _main(parser)
  File "/usr/pkg/lib/scons/SCons/Script/Main.py", line 1112:
    nodes = _build_targets(fs, options, targets, target_top)
  File "/usr/pkg/lib/scons/SCons/Script/Main.py", line 1311:
    jobs.run(postfunc = jobs_postfunc)
  File "/usr/pkg/lib/scons/SCons/Job.py", line 113:
    postfunc()
  File "/usr/pkg/lib/scons/SCons/Script/Main.py", line 1308:
    SCons.SConsign.write()
  File "/usr/pkg/lib/scons/SCons/SConsign.py", line 116:
    syncmethod()
  File "/usr/pkg/lib/scons/SCons/dblite.py", line 161:
    self._os_unlink(self._file_name)