Update check_swap usage

plugins/check_swap.c

@@ -547,7 +547,7 @@ print_help (void)
   printf (" %s\n", "-c, --critical=INTEGER");
   printf ("    %s\n", _("Exit with CRITICAL status if less than INTEGER bytes of swap space are free"));
   printf (" %s\n", "-c, --critical=PERCENT%%");
-  printf ("    %s\n", _("Exit with CRITCAL status if less than PERCENT of swap space is free"));
+  printf ("    %s\n", _("Exit with CRITICAL status if less than PERCENT of swap space is free"));
   printf (" %s\n", "-a, --allswaps");
   printf ("    %s\n", _("Conduct comparisons for all swap partitions, one by one"));
   printf (" %s\n", "-n, --no-swap=<ok|warning|critical|unknown>");
@@ -556,6 +556,7 @@ print_help (void)
 
 	printf ("\n");
   printf ("%s\n", _("Notes:"));
+  printf (" %s\n", _("Both INTEGER and PERCENT thresholds can be specified, they are all checked."));
   printf (" %s\n", _("On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s."));
 
 	printf (UT_SUPPORT);
@@ -567,6 +568,6 @@ void
 print_usage (void)
 {
 	printf ("%s\n", _("Usage:"));
-  printf ("%s [-av] -w <percent_free>%% -c <percent_free>%%\n",progname);
-  printf ("%s [-av] -w <bytes_free> -c <bytes_free>\n", progname);
+  printf (" %s [-av] -w <percent_free>%% -c <percent_free>%%\n",progname);
+  printf ("  -w <bytes_free> -c <bytes_free> [-n <state>]\n");
 }