lsblk: document LSBLK_DEBUG=

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

diff --git a/misc-utils/lsblk.8 b/misc-utils/lsblk.8
index dd2628b3a633aa568e703ae8e3af791d3d500d4d..d51a003a37b4ffcd35ec0631f2dca9f1b70f1a09 100644 (file)
--- a/misc-utils/lsblk.8
+++ b/misc-utils/lsblk.8
@@ -163,6 +163,8 @@ Milan Broz <mbroz@redhat.com>
 Karel Zak <kzak@redhat.com>
 .fi
 .SH ENVIRONMENT
+.IP LSBLK_DEBUG=all
+enables lsblk debug output.
 .IP LIBBLKID_DEBUG=all
 enables libblkid debug output.
 .IP LIBMOUNT_DEBUG=all