add shell argument to context.pexpect_* functions
Parse shell argument in context.pexpect_spawn()
and
context.pexpect_service()
. This modifies the command to be executed in
subshell (bash) if shell=True
.
Change "Add connection...with options" step to run command in shell
(then option can be $(bash command)
, which is sometimes handy).
Modify previous context.pexpect_*
calls that executed subshell to use
this more readable style.