use format() for --show-symbol-table

[kroening]

• Each commit message has a non-empty body, explaining why the change was made.
• My contribution is formatted in line with CODING_STANDARD.md.
• Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[tautschnig]

Looks ok to me modulo CI passing.

[tautschnig]

A lot of tests are disabled without providing a justification or a path forward.

[TGWDB]

Closing due to age (no further comment on PR content), please reopen with rebase on develop if you intent to continue this work.