testFscan.sh failing on ICC build

When building with ICC test testFscan.sh is failing:

Comparing first line of spec_avg/spec_10.00_20.00_H1_0_2000000000_date to reference ... OK
Comparing last line of spec_avg/spec_10.00_20.00_H1_0_2000000000_date to reference ... OK
Comparing first line of spec_avg/spec_10.00_20.00_H1_0_2000000000_timestamps to reference ... OK
Comparing last line of spec_avg/spec_10.00_20.00_H1_0_2000000000_timestamps to reference ... OK
Comparing first line of spec_avg/spec_10.00_20.00_H1_0_2000000000_timeaverage to reference ... OK
Comparing last line of spec_avg/spec_10.00_20.00_H1_0_2000000000_timeaverage to reference ... OK
Comparing first line of spec_avg/spec_10.00_20.00_H1_0_2000000000 to reference ... ERROR: 0.000000e+00 and 1.015133e-22 differ by more than 1e-5 relative tolerance

Full build log is here.

Is this related to: !1650 (merged)