emailreport: Fix checkmetrics execution tool
emailreport: Fix checkmetrics execution tool

emailreport tool fails when it uses checkmetrics
tool for parsing data and sent it by email,
this commit fixes the correct format of checkmetrics
command parameters.

Fixes: #345

Signed-off-by: Mario Alfredo Carrillo Arevalo <962470f5d16f97233f38b7e7baf23f990a7fbec3@intel.com>

chavafg/tests,devimc/tests,devimc/tests,chavafg/tests,sboeuf/tests,bwarden/tests,MarioCarrilloA/tests,clearcontainers/tests,MarioCarrilloA/tests,sboeuf/tests,clearcontainers/tests,bwarden/tests