Instead of trying to load libWPEBackend-fdo-1.0.so, which is not expected to be installed because it's an unversioned .so, it should load libWPEBackend-fdo-1.0.so.1. This has an added benefit that it will fail to load rather than blow up if there's an ABI break. Follow-up to: bug #218584
Pull request: https://github.com/WebKit/WebKit/pull/3265
Committed 253380@main (2a881ad3aa45): <https://commits.webkit.org/253380@main> Reviewed commits have been landed. Closing PR #3265 and removing active labels.