software/kvm: make promise kvm-disk-image-corruption faster

software/kvm/buildout.hash.cfg

@@ -19,7 +19,7 @@ md5sum = 2cbfd6b08c65369c1d45cf3ba2ff335a
 
 [template-kvm]
 filename = instance-kvm.cfg.jinja2
-md5sum = dc4dc40f9d950b5f963c22c62ca488a7
+md5sum = bcd3705e510da52e7ddf1e1527839642
 
 [template-kvm-cluster]
 filename = instance-kvm-cluster.cfg.jinja2.in

software/kvm/instance-kvm.cfg.jinja2

@@ -232,7 +232,7 @@ input = inline:#!/bin/sh
     # disk device option is used, skip qemu img check
     exit 0
   fi
-  ${kvm-parameter-dict:qemu-img-path} check -U ${kvm-parameter-dict:disk-path}
+  ${kvm-parameter-dict:qemu-img-path} check -U ${kvm-parameter-dict:disk-path} > /dev/null 2>&1
   RETURN_CODE=$?
   if [ $RETURN_CODE -eq 0 ] || [ $RETURN_CODE -eq 3 ]; then
     exit 0