LU-11494 tests: sanity-quota/22 syntax error fix

LU-11494 tests: sanity-quota/22 syntax error fix

Patch fixes test_22() trivial syntax error.

Test-Parameters:trivial testlist=sanity-quota envdefinitions=ONLY=22
Signed-off-by: Elena Gryaznova <c17455@cray.com>
Cray-bug-id: LUS-6011
Reviewed-by: Andriy Skulysh <c17819@cray.com>
Reviewed-by: Vladimir Saveliev <c17830@cray.com>
Change-Id: Icb3474c7166d6b74b3092617bb314a561687df06
Reviewed-on: https://review.whamcloud.com/33337
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Jenkins
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: James Nunez <jnunez@whamcloud.com>