Ignore netCDF attribute _NCProperties.

ChangeLog

@@ -3,6 +3,10 @@
         * using CGRIBEX library version 1.9.5
 	* Version 1.9.9 released
 
+2020-09-21 Uwe Schulzweida
+
+	* Ignore netCDF attribute _NCProperties
+
 2020-08-28 Uwe Schulzweida
 
 	* getAvailabilityOfRelativeTimes: added PDT 57 and 58 [patch: Jochen Foerstner]

src/stream_cdf_i.c

@@ -3472,6 +3472,9 @@ void cdf_scan_global_attr(int fileID, int vlistID, int ngatts, int *instID, int
 		{
 		}
 	      */
+	      else if ( strIsEqual(attname, "_NCProperties") )
+		{
+		}
 	      else if ( strIsEqual(attname, "CDI") )
 		{
 		}