Change the option handling code to be similar to our other internal
functions.
Break too long lines.
Add a doc comment.
Add a message(DEBUG) for the case when qt_internal_add_docs is still
called with one argument.
Rename doc_project variable to qdoc_conf_path.
Task-number: QTBUG-118176
Change-Id: I73167f1e72e2abcdb90722ecd6ee00f7636b8a5d
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 2fd16b2acb726e597479bb30f42363075e3de56b)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit a764da6902ad9dd251dbe275cd409682172496fb)
9ba8ebafaf