Fix EOF removal

No need to allocate +1 now.

tree.c

@@ -47,7 +47,7 @@ struct tree *create_tree(FILE *file)
 		freq[c]++;
 	}
 
-	struct tree **forest = malloc((charcount + 1) * sizeof(struct tree));
+	struct tree **forest = malloc((charcount) * sizeof(struct tree));
 
 	/* Create empty forest - whoah */
 	int ntrees = 0;