<AWT Dev> RFR: 8260315: Typo "focul" instead of "focus" in FocusSpec.html

[Alexey Ivanov]

A trivial fix for the typo in AWT Focus Spec, it replaces “focul” with “focus”.

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Commit messages:
 - 8260315: Typo "focul" instead of "focus" in FocusSpec.html

Changes: https://git.openjdk.java.net/jdk/pull/2209/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2209&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8260315
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2209.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2209/head:pull/2209

PR: https://git.openjdk.java.net/jdk/pull/2209