[ESS] A discrepancy between elpa version and ubuntu/mint version

[Ottorino]

Hi all,

I think I've found a discrepancy

in file

/home/user/.emacs.d/elpa/ess-20221108.1714/ess-r-mode.el

at lines 264-270

I can find the variable

ess-r-mode-map

while in

/usr/share/emacs/site-lisp/elpa-src/ess-18.10.2//ess-r-mode.el

there's not such a variable.

I realize this because on two identical systems (Mint 20.03, emacs 26.3) 
there were two different versions installed


PS

My previous problems with lintr were due to ~/.cache/R/lintr not 
writable for some obscure reasons.

Thanks Rodney for your advice.