fixed bug when heredoc starts by \; removing \n from a heredoc value end

printer/printer.go

@@ -665,6 +665,7 @@ func (p *Printer) printScalarHeredoc(n node.Node) {
 		}
 	}
 
+	io.WriteString(p.w, "\n")
 	io.WriteString(p.w, strings.Trim(nn.Label, "\"'"))
 
 	p.printMeta(nn, meta.NodeEnd)

printer/printer_test.go

@@ -575,7 +575,7 @@ func TestPrinterPrintScalarHeredoc(t *testing.T) {
 		Parts: []node.Node{
 			&scalar.EncapsedStringPart{Value: "hello "},
 			&expr.Variable{VarName: &node.Identifier{Value: "var"}},
-			&scalar.EncapsedStringPart{Value: " world\n"},
+			&scalar.EncapsedStringPart{Value: " world"},
 		},
 	})
 
@@ -602,7 +602,7 @@ func TestPrinterPrintScalarNowdoc(t *testing.T) {
 		},
 		Label: "'LBL'",
 		Parts: []node.Node{
-			&scalar.EncapsedStringPart{Value: "hello world\n"},
+			&scalar.EncapsedStringPart{Value: "hello world"},
 		},
 	})