correction in XMP header

History.md

@@ -1,7 +1,8 @@
 1.5.6
 =====
 
-closes #69
+closes #69.
+Corrected EN 16931 XMP Schema Extension header
 
 1.5.5
 =====

src/main/java/org/mustangproject/ZUGFeRD/XMPSchemaZugferd.java

@@ -41,6 +41,8 @@ public class XMPSchemaZugferd extends XMPSchema {
         String conformanceLevelValue=conformanceLevel.name();
         if (conformanceLevelValue.equals("BASICWL")) {
     			conformanceLevelValue="BASIC WL";
+        } else if (conformanceLevelValue.equals("EN16931")) {
+        		conformanceLevelValue="EN 16931";
         	}
         setTextPropertyValue("ConformanceLevel", conformanceLevelValue);
         setTextPropertyValue("DocumentType", "INVOICE");