Better error message on promote

plugins/fileservices/fileservices.cpp

@@ -1801,7 +1801,7 @@ FILESERVICES_API  char * FILESERVICES_CALL fsfPromoteSuperFileList(ICodeContext
     UnsignedArray lfnofs;
     const char *s = (const char *)lsuperfns;
     // MORE - For now, we need a local transaction
-    CheckNotInTransaction(ctx, s);
+    CheckNotInTransaction(ctx, "PromoteSuperFile");
 
     while ((size32_t)(s-(const char *)lsuperfns)<lenLsuperfns) {
         constructLogicalName(wu,s,lfn.clear());