Fixed help doc on use of % (854817 - Gunnar Hellekson)

git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@793 f882894a-f735-0410-b71e-b25c423dba1c

plugins/check_swap.c

@@ -401,11 +401,11 @@ print_help (void)
  -w, --warning=INTEGER\n\
    Exit with WARNING status if less than INTEGER bytes of swap space are free\n\
  -w, --warning=PERCENT%%\n\
-   Exit with WARNING status if less than PERCENT of swap space has been used\n\
+   Exit with WARNING status if less than PERCENT of swap space is free\n\
  -c, --critical=INTEGER\n\
    Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n\
  -c, --critical=PERCENT%%\n\
-   Exit with CRITCAL status if less than PERCENT of swap space has been used\n\
+   Exit with CRITCAL status if less than PERCENT of swap space is free\n\
  -a, --allswaps\n\
     Conduct comparisons for all swap partitions, one by one\n"));