anchor.diff:            var result = Process.runSync(
                 pkg.executableRunner("foo", node: true),
                 pkg.executableArgs("foo", node: true));
  -          expect(result.stdout, equals("in foo 1.2.3\\n"));
  +          expect(result.stdout, startsWith("in foo 1.2.3"));
             expect(result.exitCode, equals(0));
           """).create();
   
  
positive.code:         await _testCase("""
            var result = Process.runSync(
                pkg.executableRunner("foo"), pkg.executableArgs("foo"));
            expect(result.stdout, equals("in foo 1.2.3\\n"));
            expect(result.exitCode, equals(0));
          """).create();
  
  
negative.code:       await _testCase("""
            var result = Process.runSync(
                pkg.executableRunner("foo"), pkg.executableArgs("foo"));
            expect(result.stdout, startsWith("in foo 1.2.3"));
            expect(result.exitCode, equals(0));
          """).create();
  
  