Py3 fix for TrigTransform

Fix issue with scanning log file when Child job has an issue (as seen in trigger reprocessings ATR-22625)

cc @tnobe

This merge request affects 1 package:

• HLT/Trigger/TrigTransforms/TrigTransform

This merge request affects 2 files:

• HLT/Trigger/TrigTransforms/TrigTransform/README.md
• HLT/Trigger/TrigTransforms/TrigTransform/python/trigRecoExe.py

Adding @wiedenma ,@mark ,@fwinkl ,@bernius ,@rbielski as watchers

added Trigger master review-pending-level-1 labels

CI Result SUCCESS (hash 11412a40)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 27532]

added review-approved label

removed review-pending-level-1 label

merged

mentioned in commit 080c54cc

added sweep:ignore label