Correct formatting in `mbedtls_platform_set_vsnprint()` doxygen comment
diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h
index 24c6362..ada898e 100644
--- a/include/mbedtls/platform.h
+++ b/include/mbedtls/platform.h
@@ -264,9 +264,9 @@
/**
* \brief Set your own snprintf function pointer
*
- * \param vsnprintf_func the snprintf function implementation
+ * \param vsnprintf_func The \c vsnprintf function implementation
*
- * \return 0
+ * \return \c 0
*/
int mbedtls_platform_set_vsnprintf( int (*vsnprintf_func)( char * s, size_t n,
const char * format, va_list arg ) );