Rename FUNCTION_HARNESS_RESULT*() macros to FUNCTION_HARNESS_RETURN*().

When the FUNCTION_*_RESULT*() macros were renamed to FUNCTION_*_RETURN_*() in the core code the test harness macros were missed.

Update them to make the naming consistent.

test/src/module/command/backupCommonTest.c

@@ -324,5 +324,5 @@ testRun(void)
         TEST_RESULT_STR_Z(backupTypeStr(backupTypeIncr), "incr", "backup type str incr");
     }
 
-    FUNCTION_HARNESS_RESULT_VOID();
+    FUNCTION_HARNESS_RETURN_VOID();
 }