Sweeping !24115 from master to 21.1. ATR-19820: adding 'athenaHLT.py: error' to error patterns.

ATR-19820: adding 'athenaHLT.py: error' to error patterns.

See merge request !24115 (merged)

added sweep:from master label

Adding original author @salderwe as watcher.

restored source branch cherry-pick-c89b3cd866-21.1

Jenkins please retry a build

This merge request affects 1 package:

• Trigger/TrigValidation/TrigValTools

Adding @hartj ,@rbielski as watchers

added 21.1 Trigger review-pending-level-1 labels

CI Result SUCCESS

	AthenaP1
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-24159-2019-06-14-22-28
AthenaP1: number of compilation errors 0, warnings 162
For experts only: Jenkins output [CI-MERGE-REQUEST 39557]

merged

mentioned in commit 6fb94141

added sweep:ignore label