[PATCH v4 23/83] buildman: Fix most pylint warnings in control

[Simon Glass]

Tidy up the easier-to-fix pylint warnings in module 'control'.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 tools/buildman/control.py   | 119 +++++++++++++++++++++---------------
 tools/buildman/func_test.py |   2 +-
 2 files changed, 71 insertions(+), 50 deletions(-)

Applied to u-boot-dm, thanks!