[jdk26u] RFR: 8068378: [TEST_BUG]The java/awt/Modal/PrintDialogsTest/PrintDialogsTest.java instruction need to update

[Srinivas Mandalika]

This is a backport of JDK-8068378 
Updated the test instructions for better clarity, formatting and removed its entry from the ProblemList.txt.
A missing break in a switch case block in Test.java was identified during testing of the fix. This was also fixed.

Code Changes
modified:   test/jdk/ProblemList.txt
modified:   test/jdk/java/awt/Modal/PrintDialogsTest/PrintDialogsTest.java
modified:   test/jdk/java/awt/Modal/PrintDialogsTest/Test.java

JTREG Testing - Test passed on manual run via JTreg Command.

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Commit messages:
 - Backport 6e2ab84154e7cc11a31026c588a7dc3ceb446cc2

Changes: https://git.openjdk.org/jdk26u/pull/51/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk26u&pr=51&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8068378
  Stats: 36 lines in 3 files changed: 1 ins; 6 del; 29 mod
  Patch: https://git.openjdk.org/jdk26u/pull/51.diff
  Fetch: git fetch https://git.openjdk.org/jdk26u.git pull/51/head:pull/51

PR: https://git.openjdk.org/jdk26u/pull/51