SCT_CalibAlgs: Update efficiency values written out to XML files
The efficiency for modules with no entries in the corresponding DQ histogram (due to e.g. disabled links, so no hits expected) is written out to XML files as 0
. With this change, the efficiency will be written out as -1
instead to help disentangle genuine issues with modules leading to 0 efficiency.
Note: The change does not affect downstream reconstruction or SCT calibration/conditions, as the XML files are only used by internal SCT tools to monitor the performance of modules.
Tagging @csander