[tracker] libtracker-common: Whitelist waitid/waitpid/wait4

[Carlos Garnacho <carlosg src gnome org>]

commit 5dc48a337545a2dcf3c440ff4e1b75c22a54f709
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Jan 19 13:07:40 2017 +0100

    libtracker-common: Whitelist waitid/waitpid/wait4
    
    https://bugzilla.gnome.org/show_bug.cgi?id=776117

 src/libtracker-common/tracker-seccomp.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-common/tracker-seccomp.c b/src/libtracker-common/tracker-seccomp.c
index c46dfa6..0c75895 100644
--- a/src/libtracker-common/tracker-seccomp.c
+++ b/src/libtracker-common/tracker-seccomp.c
@@ -103,6 +103,9 @@ tracker_seccomp_init (void)
        ALLOW_RULE (sched_yield);
        ALLOW_RULE (sched_getaffinity);
        ALLOW_RULE (nanosleep);
+       ALLOW_RULE (waitid);
+       ALLOW_RULE (waitpid);
+       ALLOW_RULE (wait4);
        /* Main loops */
        ALLOW_RULE (poll);
        ALLOW_RULE (ppoll);