Log Message:
p5-Linux-Inotify2: update to 2.2

2.2 Mon Dec  9 04:09:05 CET 2019
	- define IN_EXCL_UNLINK to 0 if it is missing, for the benefit of
          antique systems that lack this symbol.

2.1  Fri Oct 26 03:16:03 CEST 2018
	- damn, left debugging code not caught by tests (reported by losyme).

2.0  Thu Oct 25 03:19:08 CEST 2018
	- fix poll and read documentation w.r.t. errors - this changes the
          documented API, but is how the module has always behaved.
	- mention https://lwn.net/Articles/605128/ in the docs.
	- new on_overflow callback, called for overflow events.
        - new ->broadcast method that calls all watchers with some event.
        - automatically broadcast overflow events to all watchers by default.
	- read now returns all events (except ignored ones), not just ones
          it has registered watchers for (e.g. overflow events).
	- reduced dependencies (Mike Pomraning).
        - add IN_EXCL_UNLINK flag.
        - more efficient constant initialisation.