Die when asprintf fails

Fixes many instances of
warning: ignoring return value of 'asprintf', declared with attribute warn_unused_result [-Wunused-result]

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/check_users.c b/plugins/check_users.c
index 37662928..c581fb29 100644
--- a/plugins/check_users.c
+++ b/plugins/check_users.c
@@ -89,7 +89,7 @@ main (int argc, char **argv)
         if (result == STATE_UNKNOWN)
                 printf ("%s\n", _("Unable to read output"));
         else {
-                asprintf (&perf, "%s", perfdata ("users", users, "",
+                xasprintf (&perf, "%s", perfdata ("users", users, "",
                   TRUE, wusers,
                   TRUE, cusers,
                   TRUE, 0,