[code-reflection] RFR: MNISTDemo fix

[Adam Sotona]

MNISTDemo fix of the result numbers shown for the non-dominant digits

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Commit messages:
 - MNISTDemo fix

Changes: https://git.openjdk.org/babylon/pull/319/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=319&range=00
  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/babylon/pull/319.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/319/head:pull/319

PR: https://git.openjdk.org/babylon/pull/319