examples/daemon: fix ledflasher param names

tested with:
http://instaweave.devrel.pub:90/?branch=54b4b0e7643738cd7c5014e01d4aeaab01165304

Change-Id: I9f5547bf33c418322d90dfae7aac2d8248c629cd
Reviewed-on: https://weave-review.googlesource.com/2883
Reviewed-by: Paul Westbrook <pwestbro@google.com>

examples/daemon/ledflasher/ledflasher.cc

diff --git a/examples/daemon/ledflasher/ledflasher.cc b/examples/daemon/ledflasher/ledflasher.cc
index 369b003..2e740b6 100644
--- a/examples/daemon/ledflasher/ledflasher.cc
+++ b/examples/daemon/ledflasher/ledflasher.cc
@@ -84,11 +84,11 @@
     int32_t led_index = 0;
     const auto& params = cmd->GetParameters();
     bool cmd_value = false;
-    if (params.GetInteger("_led", &led_index) &&
-        params.GetBoolean("_on", &cmd_value)) {
+    if (params.GetInteger("led", &led_index) &&
+        params.GetBoolean("on", &cmd_value)) {
       // Display this command in terminal
-      LOG(INFO) << cmd->GetName() << " _led: " << led_index
-                << ", _on: " << (cmd_value ? "true" : "false");
+      LOG(INFO) << cmd->GetName() << " led: " << led_index
+                << ", on: " << (cmd_value ? "true" : "false");
 
       led_index--;
       int new_state = cmd_value ? 1 : 0;
@@ -114,8 +114,8 @@
     LOG(INFO) << "received command: " << cmd->GetName();
     const auto& params = cmd->GetParameters();
     int32_t led_index = 0;
-    if (params.GetInteger("_led", &led_index)) {
-      LOG(INFO) << cmd->GetName() << " _led: " << led_index;
+    if (params.GetInteger("led", &led_index)) {
+      LOG(INFO) << cmd->GetName() << " led: " << led_index;
       led_index--;
       led_status_[led_index] = ~led_status_[led_index];