I just pushed this change from Shiro Kawai:

Shiro Kawai <xxxxxx@github.com> writes:

| To be R7RS compliant.
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| Commit Summary
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| * Avoid using brackets in place of parentheses
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| File Changes
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| * M ideque-2list/ideque-tests.scm (4)
| * M ideque-2list/run-tests.scm (8)