[samples] Align header guard format.
Update all header guards to align with Google C++ style.
Bug: 109595
Change-Id: I4f2e8235aeb38cae7d3e8c5cb5b46f1e6fd3f789
Reviewed-on: https://fuchsia-review.googlesource.com/c/sdk-samples/getting-started/+/765503
Reviewed-by: Chris Holguin <cholguin@google.com>
diff --git a/src/echo/echo_component.h b/src/echo/echo_component.h
index af2caa3..bea3b1b 100644
--- a/src/echo/echo_component.h
+++ b/src/echo/echo_component.h
@@ -2,8 +2,8 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
-#ifndef EXAMPLES_COMPONENTS_ECHO_CPP_ECHO_COMPONENT_H_
-#define EXAMPLES_COMPONENTS_ECHO_CPP_ECHO_COMPONENT_H_
+#ifndef FUCHSIA_SDK_EXAMPLES_ECHO_ECHO_COMPONENT_H_
+#define FUCHSIA_SDK_EXAMPLES_ECHO_ECHO_COMPONENT_H_
// [START greeting]
#include <string>
@@ -16,4 +16,4 @@
} // namespace echo
// [END greeting]
-#endif // EXAMPLES_COMPONENTS_ECHO_CPP_ECHO_COMPONENT_H_
+#endif // FUCHSIA_SDK_EXAMPLES_ECHO_ECHO_COMPONENT_H_
