Correct variable names in templates

Removes extra newline at end of zabbix_proxy.conf and zabbix_server.conf

Author: wdberry

templates/zabbix_proxy.conf.erb

@@ -103,7 +103,7 @@ PidFile=<%= @pidfile %>
 # Mandatory: no
 # Default:
 
-SocketDir=<%= @socket_dir %>
+SocketDir=<%= @socketdir %>
 <% end %>
 
 ### Option: DBHost
@@ -545,4 +545,3 @@ LoadModulePath=<%= @loadmodulepath %>
 <% if @tlspskfile %>TLSPSKFile=<%= @tlspskfile %><% end %>
 
 <% end %>
-

templates/zabbix_server.conf.erb

@@ -85,7 +85,7 @@ PidFile=<%= @pidfile %>
 # Mandatory: no
 # Default:
 
-SocketDir=<%= @socket_dir %>
+SocketDir=<%= @socketdir %>
 <% end %>
 
 ### Option: DBHost
@@ -527,4 +527,3 @@ LoadModulePath=<%= @loadmodulepath %>
 <% if @tlskeyfile %>TLSKeyFile=<%= @tlskeyfile %><% end %>
 
 <% end %>
-