Change ETL logging identification strings

[jtpalmer]

Description

Replaces the DWI identification strings with more specific names.

Motivation and Context

The ident DWI has a specific meaning in the XSEDE ETL processes. It is used to identify the dw_extract_transform_load process. There is a script that checks to make sure this process has been run in the past couple days. If all these other scripts use the same ident then the check script is unable to notify us that the ETL script has not been running.

Tests performed

I haven't tested this. I'm not sure if there could be any side effects so I've requested reviews from many team members.

Types of changes

• 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)

Checklist:

• My code follows the code style of this project as found in the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[jsperhac]

Looks sensible to me, Jeff. More specific information in logs is always desirable.