Restore old newline behavior and fix tests under Windows

Author: Volker

src/com/inet/lib/less/CssFormatter.java

@@ -797,7 +797,7 @@ CssFormatter space() {
      * @return a reference to this object
      */
     CssFormatter newline() {
-        output.append( System.lineSeparator() );
+        output.append( '\n' );
         return this;
     }
 
@@ -821,7 +821,7 @@ void insets() {
      * @return a reference to this object
      */
     CssFormatter comment( String msg ) {
-        getOutput().append( insets ).append( msg ).append( System.lineSeparator() );
+        getOutput().append( insets ).append( msg ).append( '\n' );
         return this;
     }
 

src/com/inet/lib/less/LessException.java

@@ -105,7 +105,7 @@ public String getOriginalMessage() {
     public String getMessage() {
         StringBuilder builder = new StringBuilder( super.getMessage() );
         for( LessFilePosition pos : positions ) {
-            builder.append( System.lineSeparator() ).append( " on line " ).append( pos.getLine() ).append( ", column " ).append( pos.getColumn() );
+            builder.append( "\n\t on line " ).append( pos.getLine() ).append( ", column " ).append( pos.getColumn() );
             if( pos.getFilename() != null ) {
                 builder.append( ", file " ).append( pos.getFilename() );
             }

test/com/inet/lib/less/ErrorTest.java

@@ -13,7 +13,7 @@ private void assertLessException( String less, String expectedErrorMessage ) {
             fail( "LessException expected" );
         } catch( LessException lex ) {
             String message = lex.getMessage();
-            assertEquals( expectedErrorMessage, message.substring( 0, message.indexOf( System.lineSeparator() ) ) );
+            assertEquals( expectedErrorMessage, message.substring( 0, message.indexOf( '\n' ) ) );
         }
     }
     @Test