inotify: Placate clippy

Author: VorpalBlade

src/sys/inotify.rs

@@ -242,7 +242,7 @@ impl FromRawFd for Inotify {
 }
 
 impl AsFd for Inotify {
-    fn as_fd<'a>(&'a self) -> BorrowedFd<'a> {
+    fn as_fd(&'_ self) -> BorrowedFd<'_> {
         self.fd.as_fd()
     }
 }