Merge branch 'ed/fsmonitor-on-networked-macos'

By default, use of fsmonitor on a repository on networked filesystem is disabled. Add knobs to make it workable on macOS. * ed/fsmonitor-on-networked-macos: fsmonitor: fix leak of warning message fsmonitor: add documentation for allowRemote and socketDir options fsmonitor: check for compatability before communicating with fsmonitor fsmonitor: deal with synthetic firmlinks on macOS fsmonitor: avoid socket location check if using hook fsmonitor: relocate socket file if .git directory is remote fsmonitor: refactor filesystem checks to common interface