Submission notes

Minor updates to v3.2 consisting of bug fixes and minor feature additions.

Fixes a problem on CRAN due to forthcoming changes in match.arg() output.

Test environments

local macOS 11.6, R 4.1.2
Ubuntu 20.04 LTS, R 4.1.2
Windows release via devtools::check_win_release()
Windows devel via devtools::check_win_devel()
Windows oldrelease via devtools::check_win_oldrelease()

R CMD check results

No ERRORs, NOTEs, or WARNINGs produced.