[CRIU] [PATCH cr] zdtm: don't print useless numbers

[Andrey Vagin]

expr prints a substing length. This patch redirects output of expr to /dev/null

Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 test/zdtm.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

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