minor: update to sevntu 1.28.0

Author: romani

checkstyle-sonar-plugin/pom.xml

@@ -16,7 +16,7 @@
 
   <properties>
     <maven.checkstyle.plugin.version>2.17</maven.checkstyle.plugin.version>
-    <maven.sevntu.checkstyle.plugin.version>1.27.0</maven.sevntu.checkstyle.plugin.version>
+    <maven.sevntu.checkstyle.plugin.version>1.28.0</maven.sevntu.checkstyle.plugin.version>
   </properties>
 
   <dependencies>

checkstyle-sonar-plugin/src/test/java/org/sonar/plugins/checkstyle/CheckstyleExecutorTest.java

@@ -131,7 +131,7 @@ public void generateXmlReportInEnglish() throws Exception {
                     createJavaResourceLocator());
             executor.execute();
 
-            Assert.assertTrue(report.exists());
+            Assert.assertTrue("Report should exists", report.exists());
 
             final String reportContents = FileUtils.readFileToString(report);
             assertThat(reportContents).contains("<error");
@@ -155,7 +155,7 @@ public void generateXmlReportNull() throws CheckstyleException {
                 createJavaResourceLocator());
         executor.execute();
 
-        Assert.assertFalse(report.exists());
+        Assert.assertFalse("Report should NOT exists", report.exists());
     }
 
     @Test