Doc: rsc-pattern indexing
The backrefernces for rsc-pattern are 1 indexed and not 0 indexed.
See https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_05_01
Signed-off-by: Nathaniel Clark <Nathaniel.Clark@misrule.us>
Nathaniel Clark <Nathaniel.Clark@misrule.us> | Authored on Feb 18 2021, 7:01 AM |