Merge pull request #35 from CERIT-SC/master

RH/CentOS release version comparison fix
diff --git a/manifests/server.pp b/manifests/server.pp
index 8679417..a1872bd 100644
--- a/manifests/server.pp
+++ b/manifests/server.pp
@@ -157,7 +157,7 @@
 ) inherits ::postfix::params {
 
   # Default has el5 files, for el6 a few defaults have changed
-  if ( $::operatingsystem =~ /RedHat|CentOS/ and $::operatingsystemrelease < 6 ) {
+  if ( $::operatingsystem =~ /RedHat|CentOS/ and versioncmp($::operatingsystemrelease, '6') < 0 ) {
     $filesuffix = '-el5'
   } else {
     $filesuffix = ''