Use (1L << feature)' instead of (1 << feature)' to avoid problems

with integer overflows when we add more fields.

sysdeps/freebsd/procsegment.c

@@ -48,7 +48,7 @@ glibtop_get_proc_segment_p (glibtop *server,
 			    glibtop_proc_segment *buf,
 			    pid_t pid)
 {
-	glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_PROC_SEGMENT), 0);
+	glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_PROC_SEGMENT), 0);
 	
 	memset (buf, 0, sizeof (glibtop_proc_segment));