Error message fixed

compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java

@@ -222,7 +222,7 @@ public class DefaultErrorMessages {
 
         MAP.put(GETTER_VISIBILITY_DIFFERS_FROM_PROPERTY_VISIBILITY, "Getter visibility must be the same as property visibility");
         MAP.put(PRIVATE_SETTER_ON_NON_PRIVATE_LATE_INIT_VAR, "Private setter is not allowed on non-private lateinit property");
-        MAP.put(ACCESSOR_VISIBILITY_FOR_ABSTRACT_PROPERTY, "Accessor visibilities are not allowed for abstract variables");
+        MAP.put(ACCESSOR_VISIBILITY_FOR_ABSTRACT_PROPERTY, "Accessor visibilities are not allowed for abstract properties");
         MAP.put(BACKING_FIELD_IN_INTERFACE, "Property in an interface cannot have a backing field");
         MAP.put(MUST_BE_INITIALIZED, "Property must be initialized");
         MAP.put(MUST_BE_INITIALIZED_OR_BE_ABSTRACT, "Property must be initialized or be abstract");