tail,stat: improve support for vmhgfs

Teach tail -f that it must use polling on vmhgfs file systems, and
let stat -f --format=%T report the file system type name, "vmhgfs".
* src/stat.c (human_fstype): Add a case: vmhgfs, 0xbacbacbc, remote.
* NEWS (Improvements): Mention it.
* THANKS.in: Update.
Reported by Daniel Tschinder in http://bugs.gnu.org/12461.

1 files changed, 5 insertions, 4 deletions

diff --git a/NEWS b/NEWS
index 59a851010..9bd5d58aa 100644
--- a/NEWS
+++ b/NEWS
@@ -49,10 +49,11 @@ GNU coreutils NEWS                                    -*- outline -*-
   but only with non-negative whole numbers, an increment of 1, and no
   format-changing options.
 
-  stat and tail work better with ZFS and VZFS.  stat -f --format=%T now
-  reports the file system type, and tail -f now uses inotify for files
-  on those file systems, rather than the default (for unknown file system
-  types) of issuing a warning and reverting to polling.
+  stat and tail know about ZFS, VZFS and VMHGFS.  stat -f --format=%T now
+  reports the file system type, and tail -f now uses inotify for files on
+  ZFS and VZFS file systems, rather than the default (for unknown file
+  system types) of issuing a warning and reverting to polling.  tail -f
+  still uses polling for files on VMHGFS file systems.
 
 ** Build-related