docs: replace fgrep with grep -F (!60) · Merge requests · Xiph.Org / Opus

Ralph Giles requested to merge fgrep into master Apr 20, 2023

It's been deprecated for decades and in Debian system it's starting to print warnings. Just use grep -F instead.

Signed-off-by: Ralph Giles giles@thaumas.net

docs: replace fgrep with grep -F