Refer to a TOKEN_USER payload as a "token user," not as a "user token".

This corrects messages for can't-happen errors.  The corresponding "user
token" appears in the HANDLE argument of GetTokenInformation().

src/backend/libpq/auth.c

@@ -1252,7 +1252,7 @@ pg_SSPI_recvauth(Port *port)
 
 	if (!GetTokenInformation(token, TokenUser, tokenuser, retlen, &retlen))
 		ereport(ERROR,
-				(errmsg_internal("could not get user token: error code %lu",
+				(errmsg_internal("could not get token user: error code %lu",
 								 GetLastError())));
 
 	CloseHandle(token);

src/common/exec.c

@@ -672,13 +672,10 @@ AddUserToTokenDacl(HANDLE hToken)
 		goto cleanup;
 	}
 
-	/*
-	 * Get the user token for the current user, which provides us with the SID
-	 * that is needed for creating the ACL.
-	 */
+	/* Get the current user SID */
 	if (!GetTokenUser(hToken, &pTokenUser))
 	{
-		log_error("could not get user token: error code %lu", GetLastError());
+		log_error("could not get token user: error code %lu", GetLastError());
 		goto cleanup;
 	}