Fix locale issue with scripted tests

Author: stringbean

.travis.yml

@@ -15,7 +15,7 @@ before_cache:
   - find $HOME/.sbt -name "*.lock" -delete
 
 script:
-  - sbt "++${TRAVIS_SCALA_VERSION}" "^^${SBT_VERSION}" publishLocal test scripted
+  - sbt "++${TRAVIS_SCALA_VERSION}" "^^${SBT_VERSION}" clean test scripted
 
 matrix:
   include:

src/sbt-test/sbt-jacoco/multi-build/extras/src/main/scala/jacocotest/extra/Money.scala

@@ -1,9 +1,9 @@
 package jacocotest.extra
 
-import java.util.Currency
+import java.util.{Currency, Locale}
 
 case class Money(amount: BigDecimal, currency: Currency) {
   override def toString: String = {
-    "%.2f %s".format(amount, currency.getSymbol)
+    "%.2f %s".format(amount, currency.getSymbol(Locale.forLanguageTag("en-GB")))
   }
 }