Be more precise about matching scala versions

now, f.e. "2.10" will no longer match on scala 2.12.10

Author: Philippus

src/test/java/scala/tools/refactoring/tests/util/ScalaVersionTestRule.java

@@ -21,9 +21,9 @@ public Statement apply(Statement stmt, FrameworkMethod meth, Object arg2) {
     String versionString = Properties.versionString();
 
     if (onlyOn != null) {
-      if (!onlyOn.doesNotMatch().isEmpty() && versionString.contains(onlyOn.doesNotMatch())) {
+      if (!onlyOn.doesNotMatch().isEmpty() && versionString.startsWith("version " + onlyOn.doesNotMatch())) {
         return new EmptyStatement();
-      } else if (versionString.contains(onlyOn.matches())) {
+      } else if (versionString.startsWith("version " + onlyOn.matches())) {
         return stmt;
       } else {
         return new EmptyStatement();