made a small change to 1-16

1-16.c

@@ -10,7 +10,7 @@ int ggetline(char line[], int maxline){
     }
     else if (i==maxline-2){
       line[i]='\n';
-      line[i+1]='\0';
+      line[i++]='\0';
     }
   }
   return i;