[R-SIG-Mac] sessionInfo on Monterey

[Prof Brian Ripley]

One oddity is that the CRAN Intel binary build of R (or any other built 
under 10.x) when run on Big Sur reports

 > sessionInfo()
R version 4.1.1 (2021-08-10)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 10.16
...

because the system call used reports '10.16'.

If anyone running a beta of Monterey has the CRAN binary installed, for 
completeness I would appreciate seeing what is reported.

-- 
Brian D. Ripley,                  ripley using stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford