Change cmd name

README.md

@@ -94,7 +94,7 @@ http {
 **context:** *http, server*
 
 Create measurement point in all nested locations.
-You can use "$location" or "$host" variables which represent the name of the current location and the name of current server with all non-alphanumeric characters replaced with "\_." Leading and trailing "\_" are deleted.
+You can use "$location" or "$server_name" variables which represent the name of the current location and the name of current server with all non-alphanumeric characters replaced with "\_." Leading and trailing "\_" are deleted.
 
 Example:
 
@@ -113,10 +113,10 @@ Data for `/foo/` will be sent to `nginx.foo`, data for `/bar/` - to `nginx.bar`.
 The `<params>` parameter (1.3.0) specifies list of params to be collected for all nested locations. To add all default params, use \*.
 The `<if>` parameter (1.1.0) enables conditional logging. A request will not be logged if the condition evaluates to "0" or an empty string.
 
-Example(with $host):
+Example(with $server_name):
 ```nginx
 
-    graphite_default_data nginx.$host.$location
+    graphite_default_data nginx.$server_name.$location
 
     server {
         server_name foo_host;

src/ngx_http_graphite_module.c

@@ -379,14 +379,14 @@ static const ngx_http_graphite_template_arg_t ngx_http_graphite_template_args[TE
 
 typedef enum {
     TEMPLATE_VARIABLE_LOCATION,
-    TEMPLATE_VARIABLE_HOSTS,
+    TEMPLATE_VARIABLE_SERVER_NAME,
 } ngx_http_graphite_default_data_variable_t;
 
 #define DEFAULT_DATA_ARG_COUNT 2
 
 static const ngx_http_graphite_template_arg_t ngx_http_graphite_default_data_args[DEFAULT_DATA_ARG_COUNT] = {
     { ngx_string("location"), TEMPLATE_VARIABLE_LOCATION },
-    { ngx_string("host"), TEMPLATE_VARIABLE_HOSTS },
+    { ngx_string("server"), TEMPLATE_VARIABLE_SERVER_NAME },
 };
 
 #define DEFAULT_DATA_VARIABLES(location, server_name) {location, server_name}