Fix link for diff
Default installation path for diff is /usr/bin, not it /bin, which causes that some scripts using the full path fail on setups that don't use merged-usr.
Fix link to work properly on all the setups.
https://phabricator.apertis.org/T8146
Signed-off-by: Walter Lozano walter.lozano@collabora.com
Edited by Andre Moreira Magalhaes