Bug fix in computeGainMap.py

[bdorney]

Description

Bug in: python/computeGainMap.py the output TFile was not being passed properly to the AnalysisSuiteGainMap object at initialization.

Types of changes

• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Motivation and Context

Script crashed upon execution.

How Has This Been Tested?

Ran analysis:

% python2.7 python/computeGainMap.py --file=/afs/cern.ch/user/j/jmerlin/public/GE11-S-X-CERN-0001_Physics_XRay_585uA_40kv_100uA.root --gp0=3.69094e-02 --gp0Err=5.91658e-05 --gp1=-1.51103e+01 --gp1Err=3.72196e-02 --name=GE11-X-S-CERN-0001 --hvPoint=585 --hvlist=600,625,650,660,670,680,690,700,710,720,730 --fileMap=config/Mapping_GE11-VII-S.cfg

Which produced the expected output: GainMap_GE11-X-S-CERN-0001.root

See screenshot below.

Screenshots (if appropriate):

Checklist:

• [X] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [X] I have added tests to cover my changes.
• [X] All new and existing tests passed.