Clarify language for pString parameter of zeKernelGetSourceAttributes (#67)

Author: wdamon-intel

scripts/core/module.yml

@@ -557,10 +557,13 @@ params:
       desc: "[in] handle of the kernel object"
     - type: "uint32_t*"
       name: pSize
-      desc: "[in,out] pointer to size of string in bytes."
+      desc: "[in,out] pointer to size of string in bytes, including null-terminating character."
     - type: "char**"
       name: pString
-      desc: "[in,out] pointer to null-terminated string, whose lifetime is tied to the kernel object, where kernel source attributes are separated by space."
+      desc: |
+            [in,out][optional] pointer to application-managed character array (string data).
+            If NULL, the string length of the kernel source attributes, including a null-terminating character, is returned in pSize.
+            Otherwise, pString must point to valid application memory that is greater than or equal to *pSize bytes in length, and on return the pointed-to string will contain a space-separated list of kernel source attributes.
 --- #--------------------------------------------------------------------------
 type: enum
 desc: "Supported Cache Config flags"