RFR: 8189092: ArrayIndexOutOfBoundsException on Linux in getCachedGlyph

[Phil Race]

I have added an evaluation in https://bugs.openjdk.java.net/browse/JDK-8207839
Please read that for more detail, but basically we are not properly preventing or
handling cases where fontconfig causes us to overflow the byte storage used
for a font "slot".

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Commits:
 - b6c19466: Fix whitespace
 - e00ef992: 8189092: ArrayIndexOutOfBoundsException on Linux in getCachedGlyph

Changes: https://git.openjdk.java.net/jfx/pull/24/files
 Webrev: https://webrevs.openjdk.java.net/jfx/24/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8189092
  Stats: 15 lines in 3 files changed: 12 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jfx/pull/24.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/24/head:pull/24

PR: https://git.openjdk.java.net/jfx/pull/24