[jdk11u-dev] RFR: 8214195: Align stdout messages in test/jdk/java/math/BigInteger/PrimitiveConversionTests.java

[Aleksey Shipilev]

Clean backport.

Additional testing:
 - [x] Affected test still passes

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Commit messages:
 - Backport 389a110e56a250ff1c2f8728059a88c052d7b803

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/238/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=238&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8214195
  Stats: 7 lines in 1 file changed: 4 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/238.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/238/head:pull/238

PR: https://git.openjdk.java.net/jdk11u-dev/pull/238