1 files changed, 4 insertions, 2 deletions

diff --git a/plugins/negate.c b/plugins/negate.c
index 454ac963..e10c78df 100644
--- a/plugins/negate.c
+++ b/plugins/negate.c
@@ -31,7 +31,7 @@ const char *progname = "negate";
 #define SUMMARY "Negates the status of a plugin (returns OK for CRITICAL, and vice-versa).\n"
 
 #define OPTIONS "\
-\[-t timeout] <definition of wrapped plugin>"
+[-t timeout] <definition of wrapped plugin>"
 
 #define LONGOPTIONS "\
   -t, --timeout=INTEGER\n\
@@ -117,7 +117,7 @@ main (int argc, char **argv)
         char input_buffer[MAX_INPUT_BUFFER];
 
         if (process_arguments (argc, argv) == ERROR)
-                usage ("Could not parse arguments");
+                usage ("Could not parse arguments\n");
 
         /* Set signal handling and alarm */
         if (signal (SIGALRM, timeout_alarm_handler) == SIG_ERR)
@@ -282,6 +282,8 @@ process_arguments (int argc, char **argv)
 int
 validate_arguments ()
 {
+        if (command_line == NULL)
+                return ERROR;
         return STATE_OK;
 }