findmnt: add note about LIBMOUNT_* env.variables

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/misc-utils/findmnt.8 b/misc-utils/findmnt.8
index cd2c47c8cb0551f3799765d5f1c02fd37bbbc653..4345af35c58c83fd94abb6e4179e93ae9762d970 100644 (file)
--- a/misc-utils/findmnt.8
+++ b/misc-utils/findmnt.8
@@ -189,6 +189,13 @@ Monitors mount, umount, remount and move on /mnt/foo.
 Waits for /mnt/foo umount.
 .IP "\fBfindmnt --poll=remount -t ext3 -O ro\fP"
 Monitors remounts to read-only mode on all ext3 filesystems.
+.SH ENVIRONMENT
+.IP LIBMOUNT_FSTAB=<path>
+overrides the default location of the fstab file
+.IP LIBMOUNT_MTAB=<path>
+overrides the default location of the mtab file
+.IP LIBMOUNT_DEBUG=0xffff
+enables debug output
 .SH AUTHORS
 .nf
 Karel Zak <kzak@redhat.com>