bus: rename sd_bus_send_with_reply_and_block() to sd_bus_call()

The call is one of the most important ones we expose, where we place
major emphasis on. We should make sure to give it a short, memorable
name.

src/locale/localectl.c

@@ -164,7 +164,7 @@ static int set_locale(sd_bus *bus, char **args, unsigned n) {
         if (r < 0)
                 return bus_log_create_error(r);
 
-        r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, NULL);
+        r = sd_bus_call(bus, m, 0, &error, NULL);
         if (r < 0) {
                 log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
                 return r;

src/locale/localed.c

@@ -382,7 +382,7 @@ static int locale_update_system_manager(Context *c, sd_bus *bus) {
         if (r < 0)
                 return r;
 
-        r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, NULL);
+        r = sd_bus_call(bus, m, 0, &error, NULL);
         if (r < 0)
                 log_error("Failed to update the manager environment: %s", strerror(-r));