Fix: whitespace

SI_Format.ttl

@@ -207,10 +207,10 @@ dsio:hasListMeasurementUncertaintyUnivariate rdf:type owl:ObjectProperty ;
 ###  https://ptb.de/si#hasMeasurementUncertaintyMultivariate
 dsio:hasMeasurementUncertaintyMultivariate rdf:type owl:ObjectProperty ;
                                            rdfs:domain [ rdf:type owl:Class ;
-                                                       owl:unionOf ( dsio:Complex
-                                                                     dsio:RealList
-                                                                   )
-                                                     ] ;
+                                                         owl:unionOf ( dsio:Complex
+                                                                       dsio:RealList
+                                                                     )
+                                                       ] ;
                                            rdfs:range dsio:MeasurementUncertaintyMultivariate .