Merge pull request #10291 from badone/wip-13829-hammer

hammer: config set with negative value results in "error setting 'filestore_merge_threshold' to '-40': (22) Invalid argument"

Reviewed-by: Samuel Just <sjust@redhat.com>
Reviewed-by: Josh Durgin <jdurgin@redhat.com>
Reviewed-by: Kefu Chai <kchai@redhat.com>
Reviewed-by: Nathan Cutler <ncutler@suse.com>

diff --cc qa/workunits/cephtool/test.sh
index a930450f037aa582c000dfba5e4b57c973c64cc9,d13c222820a15e10725afefa4fb4e1877e44b8bc..bee9374ff6136ff6935d1b8f117fa15e669302cc
--- 1/qa/workunits/cephtool/test.sh
--- 2/qa/workunits/cephtool/test.sh
+++ b/qa/workunits/cephtool/test.sh
@@@ -1578,9 -1560,9 +1584,10 @@@ MON_TESTS+=" mon_osd_misc
  MON_TESTS+=" mon_heap_profiler"
  MON_TESTS+=" mon_tell"
  MON_TESTS+=" mon_crushmap_validation"
 +MON_TESTS+=" mon_cephdf_commands"
  
  OSD_TESTS+=" osd_bench"
+ OSD_TESTS+=" osd_negative_filestore_merge_threshold"
  OSD_TESTS+=" tiering_agent"
  
  MDS_TESTS+=" mds_tell"