Improve documentation regarding filename and it's absolute val… (#12929)
Improve documentation regarding filename and it's absolute val… (#12929)

* Improve documentation regarding filename and it's absolute value.

Fixes #12608

* Use 'full' instead of 'absolute'

diox/olympia,bqbn/addons-server,mozilla/addons-server,mozilla/olympia,mozilla/addons-server,eviljeff/olympia,eviljeff/olympia,bqbn/addons-server,diox/olympia,mozilla/olympia,bqbn/addons-server,wagnerand/addons-server,bqbn/addons-server,diox/olympia,diox/olympia,mozilla/addons-server,mozilla/olympia,eviljeff/olympia,eviljeff/olympia,wagnerand/addons-server,wagnerand/addons-server,mozilla/olympia,wagnerand/addons-server,mozilla/addons-server