Version 1.0! Now use whereis to find the binary. Updated --help with the -P switch. Remove unnecessary variable.

readme

@@ -1,6 +1,7 @@
 This is a Nagios plugin to check the expiration date of a domain name.
 It uses the "whois" command, which usually comes as a "whois" package.
 Debian/Ubuntu: apt-get install whois
+RHEL/CentOS: yum install jwhois
 
 Original version had this copyright notice in it:
 Copyright (c) 2005 Tomàs Núñez Lirola <tnunez@criptos.com>,
@@ -18,6 +19,12 @@ Support for Performance Data by Ryan Loudfoot
 If you would like to add a TLD, send me the code or a pull request. If you want me to add one, let me know and I'll see what I can do.
 
 Change log:
+2014-09-06 - Version 1.0!
+-Using whereis command to find the whois binary
+  ("whois on first, whereis on second..." -geekiest Abbot and Costello?)
+-Add help text for -P switch
+-Add RHEL/CentOS command for installing whois command (jwhois package)
+
 2014-06-26 - Version 0.99
 -Add support for .org domains thanks to Jack-Benny Persson (jack-benny@cyberinfo.se)