And cmdstanr_print_line_numbers to list of global options

[jgabry]

Submission Checklist

• Run unit tests
• Declare copyright holder and agree to license (see below)

Summary

cmdstanr_print_line_numbers was missing from the list of available global options

Copyright and Licensing

Please list the copyright holder for the work you are submitting
(this will be you or your assignee, such as a university or company):
Columbia University

By submitting this pull request, the copyright holder is agreeing to
license the submitted work under the following licenses:

• Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)
• Documentation: CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

[andrjohns]

Ah good catch, I completely missed this when it went in

[jgabry]

Printing line numbers is a nice feature! Looks like it was added while I was on leave and I hadn't seen it until I found it yesterday.