Fix string comparison to include newline.

[aldian]

My Linux system won't allow me to use gets function as probably it is not safe, so I have to use fgets:

 error: ‘gets’ was not declared in this scope
       scanf("%d ", &d); gets(line); 
                         ^~~~

So using fgets is good for compatibility. However, fgets includes newline to the result, so without this simple fix, the code will loop forever as 4 strcmps at line 49-55 won't match.

[Jakester78]

Merge pls