procutil: use rapply(tonativestr, ...) to preserve lists when they come in
This was broken when script was a list instead of a string. I caught this
with an internal extension at Google, and I'm not really sure why it wasn't
caught in any kind of CI.
Differential Revision: https://phab.mercurial-scm.org/D9471
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install::
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing::
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.