PR feedback: Restore current behaviour (for excludedFiles).

Author: rolandtritsch

README.md

@@ -78,10 +78,12 @@ instrumented or included in the coverage report.
 You can also exclude files and file paths.
 
 ```scala
-coverageExcludedFiles := ".*\\/two\\/GoodCoverage\.scala;.*\\/three\\/.*"
+coverageExcludedFiles := ".*\\/two\\/GoodCoverage;.*\\/three\\/.*"
 ```
 
-Note: This only works for Scala2. Right now Scala3 does not support
+Note: The `.scala` file extension needs to be omitted from the filename, if one is given.
+
+Note: These two options only work for Scala2. Right now Scala3 does not support
 a way to exclude packages or files from being instrumented.
 
 You can also mark sections of code with comments like:

src/sbt-test/scoverage/coverage-excluded-files/build.sbt

@@ -4,7 +4,7 @@ scalaVersion := "2.13.6"
 
 libraryDependencies += "org.scalameta" %% "munit" % "0.7.29" % Test
 
-coverageExcludedFiles := ".*\\/two\\/GoodCoverage\\.scala"
+coverageExcludedFiles := ".*\\/two\\/GoodCoverage"
 
 resolvers ++= {
   if (sys.props.get("plugin.version").exists(_.endsWith("-SNAPSHOT")))

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

@@ -4,7 +4,7 @@ scalaVersion := "3.2.0-RC1"
 
 libraryDependencies += "org.scalameta" %% "munit" % "0.7.29" % Test
 
-coverageExcludedFiles := ".*\\/two\\/GoodCoverage\\.scala"
+coverageExcludedFiles := ".*\\/two\\/GoodCoverage"
 
 resolvers ++= {
   if (sys.props.get("plugin.version").exists(_.endsWith("-SNAPSHOT")))