Improve documentation of mbedtls_platform_gmtime_r()
diff --git a/include/mbedtls/platform_util.h b/include/mbedtls/platform_util.h
index e62a3af..9c8a930 100644
--- a/include/mbedtls/platform_util.h
+++ b/include/mbedtls/platform_util.h
@@ -67,14 +67,13 @@
#if defined(MBEDTLS_HAVE_TIME_DATE)
/**
- * \brief Thread-safe implementation of gmtime()
+ * \brief Platform-specific implementation of gmtime_r()
*
- * The function is an abstraction that when called behaves similar
- * to the gmtime() function from the C standard, but is thread
- * safe.
+ * The function is a thread-safe abstraction that behaves
+ * similar to the gmtime_r() function from the C standard.
*
* Mbed TLS will try to identify the underlying platform and
- * configure an appropriate underlying implementation (e.g.
+ * make use of an appropriate underlying implementation (e.g.
* gmtime_r() for POSIX and gmtime_s() for Windows). If this is
* not possible, then gmtime() will be used. In this case, calls
* from the library to gmtime() will be guarded by the mutex