execute: log errors from "sd(EXEC)"

To give the administrator more hints about failures occuring in spawning
of commands than just the exit code, log the strerror.
All fds are closed, so reopen the log.

Related-to: https://bugzilla.redhat.com/show_bug.cgi?id=752901

1 files changed, 3 insertions, 0 deletions

diff --git a/src/exit-status.c b/src/exit-status.c
index 8ed1a0e362..ab8907d32c 100644
--- a/src/exit-status.c
+++ b/src/exit-status.c
@@ -119,6 +119,9 @@ const char* exit_status_to_string(ExitStatus status, ExitStatusLevel level) {
 
                 case EXIT_NETWORK:
                         return "NETWORK";
+
+                case EXIT_NAMESPACE:
+                        return "NAMESPACE";
                 }
         }