Fix missing events when monitoring a file through a hard link in GLocalFileMonitor
Submitted by Philip Withnall
Following on from bug #755721, we need to investigate and fix the FIXME in
file_hard_links_output in testfilemonitor.c. GLocalFileMonitor is not emitting enough events for file modifications made through a hard link.
If it turns out that inotify doesn’t support this, then it needs to be documented.