[ESS] readline with trailing space

[Greg Minshall]

Jeremie,

i am runnnig
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ess-version: 18.10.3snapshot [elpa: 20210109.1455] (loaded from
/home/minshall/.emacs.d/elpa/ess-20210109.1455/)
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under arch linux.  i don't see the behavior you see.  in my
configuration, both test() and test1() seem to accept a line of
characters.

have you tried starting emacs -whatever (like, -q or -Q or ...)?

cheers, Greg