testCamelToUnderscoreWithoutReverse fails on Pharo 8

[gcotelli]

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1 tests did not pass:

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GlorpInflectorTest ✗ #testCamelToUnderscoreWithoutReverse (1002ms) TestFailure: Got 'free_b_s_d' instead of 'free_bsd'. GlorpInflectorTest(TestAsserter)>>assert:description:resumable: GlorpInflectorTest(TestAsserter)>>assert:description: GlorpInflectorTest(TestAsserter)>>assert:equals: at least on Pharo 8

[bazel-io]

Cherry-picked in https://github.com/bazelbuild/bazel/pull/22200