RFR: 7902705: Make printed test filtering stats shorter

[Dmitry Bessonov]

7902705: Make printed test filtering stats shorter

Currently the filtering stats printed to console look like:

44 tests skipped by filter "Conditional selection", reason: Some "selectIf" conditions don't match environment
"jck_runtime_macos" 3 tests skipped by filter "Excluded Tests", reason: Test appears on the exclude list.

However the reason of filtering could be rather long and more deserves to be present in the detailed HTML report; might
better be skipped here.

-------------

Commit messages:
 - 7902705: Make printed test filtering stats shorter

Changes: https://git.openjdk.java.net/jtharness/pull/5/files
 Webrev: https://webrevs.openjdk.java.net/jtharness/5/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902705
  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jtharness/pull/5.diff
  Fetch: git fetch https://git.openjdk.java.net/jtharness pull/5/head:pull/5

PR: https://git.openjdk.java.net/jtharness/pull/5