Adding/Fixing test (to use new coverageExclude task).

Author: rolandtritsch

src/sbt-test/scoverage/scala3-coverage-excluded-files/test

@@ -2,8 +2,7 @@
 > clean
 > coverage
 > test
+> coverageExclude
 > coverageReport
 # There should be no directory for the excluded files
-#-$ exists target/scala-3.2.0-RC1/scoverage-report/two
-# But right now there is, because Scala3 does not support excluding files
-$ exists target/scala-3.2.0-RC1/scoverage-report/two
+-$ exists target/scala-3.2.0-RC1/scoverage-report/two