Fix a typo on output file name
Fix a typo on output file name

Change-Id: Iabbf15cac2a778ee02b0f730284eb6194c1c3261
Reviewed-on: http://review.couchbase.org/46278
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Venu Uppalapati <5c73d43f38c8de2bc4a2e4d15365e52f60b59dae@gmail.com>
Reviewed-by: Traun Leyden <1f7c091e5553824d5a858e410f845ce25844fd2d@couchbase.com>
Tested-by: Traun Leyden <1f7c091e5553824d5a858e410f845ce25844fd2d@couchbase.com>

vmx/perfrunner,pavel-paulau/perfrunner,hsharsha/perfrunner,pavel-paulau/perfrunner,EricACooper/perfrunner,mikewied/perfrunner,EricACooper/perfrunner,hsharsha/perfrunner,thomas-couchbase/perfrunner,pavel-paulau/perfrunner,couchbase/perfrunner,PaintScratcher/perfrunner,mikewied/perfrunner,couchbase/perfrunner,vmx/perfrunner,dkao-cb/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,thomas-couchbase/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,dkao-cb/perfrunner,pavel-paulau/perfrunner,PaintScratcher/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,couchbase/perfrunner