[#391] Use System.lineSeparator() instead of System.getProperty(\"lin…

src/it/projects/describe-cmd-with-goal/verify.groovy

@@ -19,7 +19,7 @@
 
 def result = new File(basedir, 'result.txt').text;
 
-def ls = System.getProperty( "line.separator" );
+def ls = System.lineSeparator();
 
 assert result.contains("'deploy:deploy' is a plugin goal (aka mojo)." + ls +
                        "Mojo: 'deploy:deploy'" + ls + 

src/it/projects/describe-cmd/verify.groovy

@@ -19,7 +19,7 @@
 
 def result = new File(basedir, 'result-deploy.txt').text;
 
-def ls = System.getProperty( "line.separator" );
+def ls = System.lineSeparator();
 
 assert result.contains("'deploy' is a phase corresponding to this plugin:" + ls +
         "org.apache.maven.plugins:maven-deploy-plugin")

src/it/projects/describe-plugin-in-plugin-management/verify.groovy

@@ -18,7 +18,7 @@
  */
 
 def result = new File(basedir, 'result.txt').text;
-def ls = System.getProperty( "line.separator" );
+def ls = System.lineSeparator();
 
 assert result.contains(
   "Group Id: org.apache.maven.plugins" + ls + 

src/it/projects/describe-plugin-without-name/verify.groovy

@@ -19,7 +19,7 @@
 
 def result = new File(basedir, 'result.txt').text;
 
-def ls = System.getProperty( "line.separator" );
+def ls = System.lineSeparator();
 
 assert result.contains( "Name: Maven Help Plugin" )
 

src/it/projects/effective-pom-artifact/verify.groovy

@@ -19,7 +19,7 @@
 def result = new File(basedir, 'result.txt'); 
 assert result.exists()
 
-def LS = System.getProperty("line.separator") 
+def LS = System.lineSeparator() 
 assert result.text.find('(?s)' +
 '  <groupId>org.apache.maven.plugins</groupId>' + LS +
 '  <artifactId>maven-help-plugin</artifactId>'

src/it/projects/effective-pom-multimodule-artifact/verify.groovy

@@ -23,7 +23,7 @@ assert content.indexOf( "<projects>" ) == -1
 def result = new File(basedir, 'result.txt');
 assert result.exists()
 
-def LS = System.getProperty("line.separator")
+def LS = System.lineSeparator()
 assert result.text.find('(?s)' +
         '  <groupId>org.apache.maven.plugins</groupId>' + LS +
         '  <artifactId>maven-help-plugin</artifactId>'

src/it/projects/effective-pom_properties/verify.groovy

@@ -19,7 +19,7 @@
 def buildLog = new File(basedir, 'build.log');
 assert buildLog.exists()
 
-def LS = System.getProperty("line.separator")
+def LS = System.lineSeparator()
 if (mavenVersion.startsWith('4.')) {
     // with Maven 4, order of properties is reversed from original pom.xml
     assert buildLog.text.find(

src/main/java/org/apache/maven/plugins/help/AbstractHelpMojo.java

@@ -52,7 +52,7 @@ public abstract class AbstractHelpMojo extends AbstractMojo {
     protected static final int LINE_LENGTH = 79;
 
     /** The line separator for the current OS. */
-    protected static final String LS = System.getProperty("line.separator");
+    protected static final String LS = System.lineSeparator();
 
     /**
      * Current Maven project.

src/test/java/org/apache/maven/plugins/help/DescribeMojoTest.java

@@ -85,7 +85,7 @@ void testValidExpression() throws Exception {
         parameter.setExpression("${valid.expression}");
         md.addParameter(parameter);
 
-        String ls = System.getProperty("line.separator");
+        String ls = System.lineSeparator();
 
         Method describeMojoParameters = DescribeMojo.class.getDeclaredMethod(
                 "describeMojoParameters", MojoDescriptor.class, StringBuilder.class);