subversion-1.10.6: tests successful on macOS

[Nathan Hartman]

Same as before: Modified get-deps.sh to use zlib 1.2.11 from
https://www.zlib.net/zlib-1.2.11.tar.gz

Summary of test results:
  2413 tests PASSED
  94 tests SKIPPED
  59 tests XFAILED (1 WORK-IN-PROGRESS)
SUMMARY: All tests successful.