update

Signed-off-by: Chen, Sheng S <sheng.s.chen@intel.com>

Author: ShengchenJ

clang/test/dpct/help_option_check/win/help_advanced.txt

@@ -63,7 +63,7 @@ Advanced DPCT options
     =in_order_queue_events                -   Experimental extension that allows placing the event from the last command submission into the queue and setting an external event as an implicit dependence on the next command submitted to the queue.
     =non-stdandard-sycl-builtins          -   Experimental extension that allows use of non standard SYCL builtin functions.
     =prefetch                             -   Experimental extension that allows use of SYCL prefetch APIs.
-    =level_zero                           -   Experimental extension that allows the use of Level Zero APIs to migrate IPC code, with the DPCT_EXT_ONEAPI_BACKEND_LEVEL_ZERO macro defined to enable these APIs.
+    =level_zero                           -   Experimental extension that allows the use of Level Zero APIs to migrate the target code. For example, migrate the CUDA Inter Process Communication(IPC) APIs. 
     =all                                  -   Enable all experimental extensions listed in this option.
 
 <source0> ... Paths of input source files. These paths are looked up in the compilation database.

clang/test/dpct/help_option_check/win/help_all.txt

@@ -169,7 +169,7 @@ All DPCT options
     =in_order_queue_events                -   Experimental extension that allows placing the event from the last command submission into the queue and setting an external event as an implicit dependence on the next command submitted to the queue.
     =non-stdandard-sycl-builtins          -   Experimental extension that allows use of non standard SYCL builtin functions.
     =prefetch                             -   Experimental extension that allows use of SYCL prefetch APIs.
-    =level_zero                           -   Experimental extension that allows the use of Level Zero APIs to migrate IPC code, with the DPCT_EXT_ONEAPI_BACKEND_LEVEL_ZERO macro defined to enable these APIs.
+    =level_zero                           -   Experimental extension that allows the use of Level Zero APIs to migrate the target code. For example, migrate the CUDA Inter Process Communication(IPC) APIs. 
     =all                                  -   Enable all experimental extensions listed in this option.
   --use-explicit-namespace=<value>        - Define the namespaces to use explicitly in generated code. The <value> is a comma
                                             separated list. Default: dpct/syclcompat, sycl.