See this diff, specifically the last citation (Tourist Drives of Western Australia). The bot changed url=http://www.tourism.wa.gov.au/Publications%20Library/Tourist%20Drives%20of%20WA.pdf to url=http://www.tourism.wa.gov.au/Publications for no reason that I can see.
Reposted from enwiki: https://en.wikipedia.org/w/index.php?title=User_talk:Cyberpower678&diff=748508333