Merge pull request #335 from bjaglin/cantfixoverridenscalac

overriden scalacOptions are not supported by scalafixEnable

src/sbt-test/sbt-scalafix/scalafixEnable/project/FatalWarningsPlugin.scala

@@ -12,15 +12,9 @@ object FatalWarningsPlugin extends AutoPlugin {
   override def requires: Plugins = ScalafixPlugin
 
   override def projectSettings: Seq[Def.Setting[_]] = Seq(
-    Test / compile / scalacOptions := {
-      val old = (Test / compile / scalacOptions).value
-      val strict = Seq(
-        "-Xfatal-warnings",
-        "-Ywarn-unused"
-      )
-      // For sbt 1.3+ where SemanticdbPlugin is available and preferred to manual tweaking,
-      // scalafixEnable does not manage to enable Semanticdb when scalacOptions are overriden
-      if (sbtVersion.value.split("\\.")(1).toInt >= 3) old ++ strict else strict
-    }
+    Test / compile / scalacOptions ++= Seq(
+      "-Xfatal-warnings",
+      "-Ywarn-unused"
+    )
   )
 }