cdfInqContents: initialize ncvars

ChangeLog

@@ -24,6 +24,8 @@
 2012-08-27  Uwe Schulzweida  <Uwe.Schulzweida@zmaw.de>
 
 	* Version 1.5.7 released
+	* model.c::modelInq*: check instID != UNDEFID (buf fix)
+	* institution.c::insitutInq*: check instID != UNDEFID (buf fix)
 	* Merge of branch cdo-pio into trunk cdi
 	* using CGRIBEX library version 1.5.4
 	* using EXSE library version 1.3.1

src/stream_cdf.c

@@ -6310,7 +6310,7 @@ int cdfInqContents(int streamID)
   int nbdims;
   int calendar = UNDEFID;
   ncdim_t *ncdims;
-  ncvar_t *ncvars;
+  ncvar_t *ncvars = NULL;
   int vlistID;
   stream_t *streamptr;
   int format = 0;