[jdk11u-dev] RFR: 8285617: Fix java/awt/print/PrinterJob/ImagePrinting/PrintARGBImage.java manual test

[Goetz Lindenmaier]

I backport this for parity with 11.0.18-oracle.

I had to replace a string text block by common string concatenation.

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Commit messages:
 - Backport e7c3b9de649d4b28ba16844e042afcf3c89323e5

Changes: https://git.openjdk.org/jdk11u-dev/pull/1435/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1435&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8285617
  Stats: 48 lines in 1 file changed: 25 ins; 7 del; 16 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1435.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1435/head:pull/1435

PR: https://git.openjdk.org/jdk11u-dev/pull/1435