random-seed: terminate the option array

So we don't crash on invalid options:

$ build/systemd-random-seed --foo
Segmentation fault (core dumped)

diff --git a/src/random-seed/random-seed.c b/src/random-seed/random-seed.c
index 25d4d3f584c5cfce7fcf80b154a79789294ab6ab..12eb1f7eac833364d07c00ae5a03d8eef12451f1 100644 (file)
--- a/src/random-seed/random-seed.c
+++ b/src/random-seed/random-seed.c
@@ -348,6 +348,7 @@ static int parse_argv(int argc, char *argv[]) {
         static const struct option options[] = {
                 { "help",    no_argument, NULL, 'h'         },
                 { "version", no_argument, NULL, ARG_VERSION },
+                {}
         };
 
         int c;