fix spelling, "too much" versus "too many"

src/spicelib/parser/inp2m.c

@@ -91,7 +91,7 @@ INP2M(CKTcircuit *ckt, INPtables *tab, card *current)
 
     int model_numnodes_ = model_numnodes(thismodel->INPmodType);
     if (i > model_numnodes_) {
-        LITERR ("too much nodes connected to instance");
+        LITERR ("too many nodes connected to instance");
         return;
     }
 

src/spicelib/parser/inp2n.c

@@ -63,7 +63,7 @@ void INP2N(CKTcircuit *ckt, INPtables * tab, card * current)
     line=saveline;
     term=(term-2)/2;
     if (term > 7) {
-	LITERR("Numerical device has too much nodes, the limitation is 7\n");
+	LITERR("Numerical device has too many nodes, the limitation is 7\n");
 	return;
     }
     for(i=0;i<term;i++) {   

src/spicelib/parser/inp2q.c

@@ -84,7 +84,7 @@ void INP2Q(CKTcircuit *ckt, INPtables * tab, card * current, CKTnode *gnode)
 
     int model_numnodes_ = model_numnodes(thismodel->INPmodType);
     if (i > model_numnodes_) {
-        LITERR("Too much nodes for this model type");
+        LITERR("Too many nodes for this model type");
         return;
     }