parser/inpgmod.c, fix an almost bug, (level=...)

When 'level' was a valid model parameter,
  it was processed like any other parameter,
but additionally the
  ´if (strcmp(parm. "level"))'
invoked INPgetValue() a second time.

This didn't cause harm, merely because the next token after the
  level=number
almost necessarily is a string (the bginning parameter= of the next assignment)
thus not a parse-able number, and
thus the second INPgetValue didn't modify the 'line' pointer.

For clarity invoke the "level" skipping only if "level"
  is not a valid model parameter.

src/spicelib/parser/inpgmod.c

@@ -105,7 +105,7 @@ create_model(CKTcircuit *ckt, INPmodel *modtmp, INPtables *tab)
             }
         }
 
-        if (strcmp(parm, "level") == 0) {
+        if (j >= *(ft_sim->devices[modtmp->INPmodType]->numModelParms) && strcmp(parm, "level") == 0) {
             /* just grab the level number and throw away */
             /* since we already have that info from pass1 */
             val = INPgetValue(ckt, &line, IF_REAL, tab);