Fix typo / improve documentation for test step fns
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/tests/include/test/helpers.h b/tests/include/test/helpers.h
index 4e59e20..d08100f 100644
--- a/tests/include/test/helpers.h
+++ b/tests/include/test/helpers.h
@@ -116,10 +116,10 @@
/**
* \brief Increment the current test step.
*
- * \note Calling this function from within multiple threads at the
- * same time is not recommended - whilst it is entirely thread
- * safe, the order of calls to this function can obviously not
- * be ensured, so unexpected results may occur.
+ * \note It is not recommended for multiple threads to call this
+ * function concurrently - whilst it is entirely thread safe,
+ * the order of calls to this function can obviously not be
+ * ensured, so unexpected results may occur.
*/
void mbedtls_test_increment_step(void);
@@ -231,10 +231,10 @@
* "step number" is the index of a for loop but it can be
* whatever you want.
*
- * \note Calling this function from a within multiple threads at the
- * same time is not recommended - whilst it is entirely thread
- * safe, the order of calls to this function can obviously not
- * be ensured, so unexpected results may occur.
+ * \note It is not recommended for multiple threads to call this
+ * function concurrently - whilst it is entirely thread safe,
+ * the order of calls to this function can obviously not be
+ * ensured, so unexpected results may occur.
*
* \param step The step number to report.
*/