Tweaked a comment.

main.c

@@ -579,9 +579,9 @@ static int do_recv(int f_in,int f_out,struct file_list *flist,char *local_name)
 			exit_cleanup(RERR_PROTOCOL);
 		}
 
-		/* Finally, we hang around waiting for our parent to kills
-		 * us with a USR2 signal.  We sleep for a short time, as on
-		 * some OSes a signal won't interrupt a sleep! */
+		/* Finally, we go to sleep until our parent kills us with a
+		 * USR2 signal.  We sleep for a short time, as on some OSes
+		 * a signal won't interrupt a sleep! */
 		while (1)
 			msleep(20);
 	}