clients: unify how we invoke getopt_long()

Among other things this makes sure we always expose a --version command
and show it in the help texts.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 9f887134c1..34a0dafa64 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -165,7 +165,7 @@ static int parse_argv(int argc, char *argv[]) {
                 { "bind-ro",         required_argument, NULL, ARG_BIND_RO         },
                 { "machine",         required_argument, NULL, 'M'                 },
                 { "slice",           required_argument, NULL, 'S'                 },
-                { NULL,              0,                 NULL, 0                   }
+                {}
         };
 
         int c, r;
@@ -178,8 +178,7 @@ static int parse_argv(int argc, char *argv[]) {
                 switch (c) {
 
                 case 'h':
-                        help();
-                        return 0;
+                        return help();
 
                 case ARG_VERSION:
                         puts(PACKAGE_STRING);
@@ -329,8 +328,7 @@ static int parse_argv(int argc, char *argv[]) {
                         return -EINVAL;
 
                 default:
-                        log_error("Unknown option code %c", c);
-                        return -EINVAL;
+                        assert_not_reached("Unhandled option");
                 }
         }