Re: [PATCH RESEND] Do not override LESS

Anders Melchiorsen [off-list ref] writes:

Passing options to "less" with the LESS environment variable can
interfere with existing environment variables. There are at least two
problems, as the following examples show:

1. Alice is using git with colors. Now she decides to set LESS=i for
some reason. Suddenly, she sees codes in place of colors because LESS
is no longer set automatically.

2. Bob sets GIT_PAGER="less -RS", but does not set LESS. Git sets
LESS=FRSX before calling $GIT_PAGER. Now Bob wonders why his pager is
not always paging, when he explicitly tried to clear the F option.

3. Christ has been happily using git with his PAGER set to "less".  He
   suddenly notices that output from git linewraps and the pager does not
   exit when showing a short output, and gets very unhappy.