1 files changed, 4 insertions, 8 deletions

diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index 3016e1ad..064c65e4 100644
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
@@ -326,7 +326,6 @@ main (int argc, char **argv)
 
 
 
-
 int
 check_swap (int usp, long unsigned int free_swap)
 {
@@ -346,6 +345,7 @@ check_swap (int usp, long unsigned int free_swap)
 }
 
 
+
 /* process command-line arguments */
 int
 process_arguments (int argc, char **argv)
@@ -420,7 +420,9 @@ process_arguments (int argc, char **argv)
                         print_help ();
                         exit (STATE_OK);
                 case '?':                                                                       /* error */
-                        usage (_("Invalid argument\n"));
+                        printf (_("%s: Unknown argument: %s\n\n"), progname, optarg);
+                        print_usage ();
+                        exit (STATE_UNKNOWN);
                 }
         }
 
@@ -450,8 +452,6 @@ process_arguments (int argc, char **argv)
 
 
 
-
-
 int
 validate_arguments (void)
 {
@@ -472,9 +472,6 @@ validate_arguments (void)
 
 
 
-
-
-
 void
 print_help (void)
 {
@@ -514,7 +511,6 @@ On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n"));
 
 
 
-
 void
 print_usage (void)
 {