fanotify.7: Add some whitespace to example program

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man7/fanotify.7

@@ -649,6 +649,7 @@ main(int argc, char *argv[])
     /* This is the loop to wait for incoming events */
 
     printf("Listening for events.\\n");
+
     while (1) {
         poll_num = poll(fds, nfds, \-1);
         if (poll_num == \-1) {
@@ -658,6 +659,7 @@ main(int argc, char *argv[])
             perror("poll");         /* Unexpected error */
             exit(EXIT_FAILURE);
         }
+
         if (poll_num > 0) {
             if (fds[0].revents & POLLIN) {
 
@@ -667,6 +669,7 @@ main(int argc, char *argv[])
                     continue;
                 break;
             }
+
             if (fds[1].revents & POLLIN) {
 
                 /* Fanotify events are available */