[2.13.x] DDF-04816 Create stopkey file in script directory

[ahoffer]

What does this PR do?

Ensure that the Solr stopkey file is generated in the correct directory for *NIX systems.

Who is reviewing it?

@austinsteffes @brendan-hofmann @brjeter @tyler30clemens

Select relevant component teams:

@codice/solr

Ask 2 committers to review/merge the PR and tag them here.

@vinamartin
@brendan-hofmann
@brjeter

How should this be tested?

Can only be testing on *NIX systems.

1. Build and unzip DDF distro
2. Start DDF from OUTSIDE the bin directory. For example ddf-distro/bin/ddf
3. Check that the SOLR_STOPKEY file exists in the bin directory ddf-distro/bin and NOT in the directory where the command was run.

What are the relevant tickets?

Fixes: #4816

Checklist:

• Documentation Updated
• Update / Add Threat Dragon models
• Update / Add Unit Tests
• Update / Add Integration Tests

Notes on Review Process

Please see Notes on Review Process for further guidance on requirements for merging and abbreviated reviews.

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[tyler30clemens]

Does this need a fix for Windows as well?

[ahoffer]

@tyler30clemens No Windows changes. Windows uses batch files, not bash scripts.

[brjeter]

Hero successful ✅