Fix getting the Logtalk user directory and the Logtalk startup directory for Quintus Prolog
Fix getting the Logtalk user directory and the Logtalk startup directory for Quintus Prolog

LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3