Cherry-picks #9943

Description

The test does the following:
1.Randomly appends new-line character to the token value buffer
2. If #1 is done, it generates temp token file with buffer containing new-line character.
3. Also, it remember the original token for future validation
4. The code parse and read token-validation files and removes the new-line character as desired.

Failure in this case due to random buffer used to populate token value contained newline character which was used for validation, however, the file parse/read code as expected removed the newline character, hence causing the mismatch.

Patch addresses the concern by ensuring test generated random token-value has no trailing newline chars.

Testing

tests/fast/RandomUnitTests.toml -s 1355028229

(cherry picked from commit 8e52082)

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