This was needed when we were using xargs, but we're already using zargs
instead for quite some time. Pro is that now common functions are reused
instead of repeated. Con (or change) is that due to that reuse, and in
favor of simplification, the warning for a module with git submodules in
degit is in a separate line from a separate print call now.
Also fix regressions from recent commits:
- Need to call _zimfw_source_zimrc twice with 1 and 2 flags instead of
with flag 3, since flag 2 must be used after module is installed or
updated.
- Need to call _zimfw_print_okay from the function that handles on-pull,
since we want to include the on-pull output in verbose mode. This
function was called just `handle` before, now it's called
_zimfw_pull_print_okay.
Still need to figure out how to return a final error code from
_zimfw_run_tool_action.
ee93f7944f