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/urlize.c b/plugins/urlize.c
index 6bb42db0..30b2a353 100644
--- a/plugins/urlize.c
+++ b/plugins/urlize.c
@@ -102,7 +102,7 @@ main (int argc, char **argv)
 
         cmd = strdup (argv[optind++]);
         for (c = optind; c < argc; c++) {
-                asprintf (&cmd, "%s %s", cmd, argv[c]);
+                xasprintf (&cmd, "%s %s", cmd, argv[c]);
         }
 
         child_process = spopen (cmd);