RFR: 8344316: Add extra line in security/auth/callback/TextCallbackHandler/Password.java to make clear it is not a JTReg test [v4]

[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:

  removed an unnecessary new line

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22951/files
  - new: https://git.openjdk.org/jdk/pull/22951/files/ffc2be16..f162cccc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22951&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22951&range=02-03

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 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