Revert "puts: use \r\n instead of just \n"

This reverts commit fc1232f.

Author: stsp

src/libc/ansi/stdio/puts.c

@@ -8,6 +8,5 @@ puts(const char *s)
 
   while ((c = *s++))
     putchar(c);
-  putchar('\r');
   return putchar('\n');
 }