#42 check_nt dont return warning or OK?

[Anonymous]

When using check_nt i does not return warning

The command:
./check_nt -H 192.168.249.110 -p 1248 -v
USEDDISKSPACE -l C -c 2 -w 6 -s ""

Returns:
C:\ - total: 3.95 Gb - used: 2.52 Gb (64%) - free 1.43
Gb (36%)

I expected a warning or an OK result.

Am i doing somthing wrong ??