doc: Use new-style command substitution.

Follow up of beaf701d65.

* doc/guix.texi: Replace the shell old-style command substitution with
the new-style one.

Signed-off-by: Julien Lepiller <julien@lepiller.eu>
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zimoun 2022-05-16 00:31:24 +02:00 committed by Julien Lepiller
parent 77f84500ed
commit e584e58e92
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@ -3457,7 +3457,7 @@ The typical use case is to define these environment variables in the
shell:
@example
$ eval `guix package --search-paths`
$ eval $(guix package --search-paths)
@end example
@var{kind} may be one of @code{exact}, @code{prefix}, or @code{suffix},