This does 2 things:
a.) fixes broken logic in 'close_stdin'
previously _CLOUD_INIT_SAVE_STDIN had to be set to false to
preserve stdin. "save_stdin" should be true to indicate it
should be saved.
The net result is that you can stuff just add
import pdb; pdb.set_trace()
to code, and then run something like:
sudo _CLOUD_INIT_SAVE_STDIN=1 _CLOUD_INIT_SAVE_STDOUT=1 \
cloud-init single --name=mounts --frequency=always
And enter the debugger even if you had a 'output' that would redirect
stdin/out by default, like:
output: {all: '| tee -a /var/log/cloud-init-output.log'}
aef06d4f60