the localrc is really just executable shell, which means there are
tons of edgecases where you can't treat it the same as simple
assignment a=b.
Instead of trying to be smart about things and reduce duplication in
the localrc files, just do the naive thing and stack up all the shell
declarations in order. When evaluated in shell they will end up
stacking up as expected.
Change-Id: I231d130b24b02cdd79618f85472cee21905884e0
It's important when setting localrc name=value that there are no
spaces around the = sign, otherwise it doesn't work. Remember to treat
localrc special from the iniset portions.
python3 argparse adds native subparsers, which makes this much easier
to build without external dependencies (which improves load and run
time). 20ms for most operations means we can do 50 / sec. This will be
a slow down from the awk approach, but for larger gains in
readability.
