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_radius.c b/plugins/check_radius.c
index c2c93eeb..e54105b0 100644
--- a/plugins/check_radius.c
+++ b/plugins/check_radius.c
@@ -328,7 +328,7 @@ void
 print_help (void)
 {
         char *myport;
-        asprintf (&myport, "%d", PW_AUTH_UDP_PORT);
+        xasprintf (&myport, "%d", PW_AUTH_UDP_PORT);
 
         print_revision (progname, NP_VERSION);