cdi_generate_vars: uinitialize level_sf with 1 (bug fix)

src/varscan.c

@@ -314,17 +314,16 @@ void varAddRecord(int recID, int param, int gridID, int zaxistype, int lbounds,
     }
   else
     {
+      char paramstr[32];
+      cdiParamToString(param, paramstr, sizeof(paramstr));
+
       if ( vartable[varID].gridID != gridID )
 	{
-	  char paramstr[32];
-	  cdiParamToString(param, paramstr, sizeof(paramstr));
 	  Message("param = %s gridID = %d", paramstr, gridID);
 	  Error("horizontal grid must not change for same param!");
 	}
       if ( vartable[varID].zaxistype != zaxistype )
 	{
-	  char paramstr[32];
-	  cdiParamToString(param, paramstr, sizeof(paramstr));
 	  Message("param = %s zaxistype = %d", paramstr, zaxistype);
 	  Error("zaxistype must not change for same param!");
 	}
@@ -476,6 +475,7 @@ void cdi_generate_vars(stream_t *streamptr)
       timaccu   = vartable[varid].timaccu;
       comptype  = vartable[varid].comptype;
 
+      level_sf  = 1;
       if ( vartable[varid].level_sf == 77 ) level_sf = 0.001;
 
       zaxisID = UNDEFID;