fix module on gentoo linux

Author: saz

manifests/params.pp

@@ -8,6 +8,7 @@
       $ssh_config = '/etc/ssh/ssh_config'
       $ssh_known_hosts = '/etc/ssh/ssh_known_hosts'
       $service_name = 'ssh'
+      $sftp_server_path = '/usr/lib/openssh/sftp-server'
     }
     redhat: {
       $server_package_name = 'openssh-server'
@@ -17,6 +18,7 @@
       $ssh_config = '/etc/ssh/ssh_config'
       $ssh_known_hosts = '/etc/ssh/ssh_known_hosts'
       $service_name = 'sshd'
+      $sftp_server_path = '/usr/lib/openssh/sftp-server'
     }
     freebsd: {
       $server_package_name = undef
@@ -25,6 +27,7 @@
       $ssh_config = '/etc/ssh/ssh_config'
       $ssh_known_hosts = '/etc/ssh/ssh_known_hosts'
       $service_name = 'sshd'
+      $sftp_server_path = '/usr/lib/openssh/sftp-server'
     }
     default: {
       case $::operatingsystem {
@@ -36,6 +39,7 @@
           $ssh_config = '/etc/ssh/ssh_config'
           $ssh_known_hosts = '/etc/ssh/ssh_known_hosts'
           $service_name = 'sshd'
+          $sftp_server_path = '/usr/lib/misc/sftp-server'
         }
         default: {
           fail("Unsupported platform: ${::osfamily}/${::operatingsystem}")
@@ -49,15 +53,14 @@
     'X11Forwarding'                   => 'yes',
     'PrintMotd'                       => 'no',
     'AcceptEnv'                       => 'LANG LC_*',
-    'Subsystem'                       => 'sftp /usr/lib/openssh/sftp-server',
+    'Subsystem'                       => "sftp ${sftp_server_path}",
     'UsePAM'                          => 'yes',
   }
 
   $ssh_default_options = {
     'Host *'                 => {
       'SendEnv'              => 'LANG LC_*',
       'HashKnownHosts'       => 'yes',
-      'GSSAPIAuthentication' => 'yes',
     },
   }
 }