RFR: 8344316: Add extra line in security/auth/callback/TextCallbackHandler/Password.java to make clear it is not a JTReg test [v2]

[Mikhail Yankelevich]

> * Add extra line in security/auth/callback/TextCallbackHandler/Password.java to make clear it is not a JTReg test
> * Test will now fail if run with JTReg

Mikhail Yankelevich has updated the pull request incrementally with one additional commit since the last revision:

  minor, but to the @bug

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22951/files
  - new: https://git.openjdk.org/jdk/pull/22951/files/c39d99ae..d887a60e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22951&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22951&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22951.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22951/head:pull/22951

PR: https://git.openjdk.org/jdk/pull/22951