Update SYCL/ESIMD/api/esimd_merge.cpp

Author: kbobrovs

SYCL/ESIMD/api/esimd_merge.cpp

@@ -11,7 +11,8 @@
 // RUN: %HOST_RUN_PLACEHOLDER %t.out
 // RUN: %GPU_RUN_PLACEHOLDER %t.out
 
-// This is a functional test for esimd::merge free functions.
+// This is a functional test for esimd::merge free functions, as well as two-input
+// version of the simd_obj_impl::merge.
 
 #include "../esimd_test_utils.hpp"