better documentation

diff --git a/kvm-manager b/kvm-manager
index 078fcf3d2ea4562963d9bc57be524be8cbefd311..04c024a2fc70613fc3f25b82f537f0321cc10dd1 100755 (executable)
--- a/kvm-manager
+++ b/kvm-manager
@@ -13,6 +13,7 @@ set -x
 # TAP=tap0
 # RAM=512
 # MAC=52:54:00:12:34:56
+# KVMOPTS=/path/to/disk
 
 if [ -z "$VMNAME" ] ; then
     exit 1
@@ -75,7 +76,7 @@ case "$1" in
        "$1"
        ;;
     *)
-       echo "Usage: $0 [up|down]"
+       echo "Usage: $0 [up|down]" >&2
        exit 1
        ;;
 esac