RFR: 8264165: jpackage BasicTest fails after JDK-8220266: Check help text contains plaform specific parameters

[Alexey Semenyuk]

Add missing escape single quote (') and typo fix

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Commit messages:
 - 8264165: jpackage BasicTest fails after JDK-8220266: Check help text contains plaform specific parameters

Changes: https://git.openjdk.java.net/jdk/pull/3193/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3193&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264165
  Stats: 4 lines in 4 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3193.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3193/head:pull/3193

PR: https://git.openjdk.java.net/jdk/pull/3193