[FYI] {master} docs: APIs for custom test drivers are highly experimental

[Stefano Lattarini]

* doc/automake.texi (API for Custom Test Drivers): The APIs
described here are not "somewhat experimental", but rather
"highly experimental".  Don't promise the sure a sort of
backward-compatibility that we are very likely not going to
keep.
---
 doc/automake.texi |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/doc/automake.texi b/doc/automake.texi
index 3c8bf0e..2090f38 100644
--- a/doc/automake.texi
+++ b/doc/automake.texi
@@ -9358,9 +9358,10 @@ invocations of @address@hidden
 @node API for Custom Test Drivers
 @subsection API for Custom Test Drivers
 
-Note that @emph{the APIs described here are still somewhat experimental},
-and might undergo changes and tightenings in the future, to accommodate
-for new features or to satisfy additional portability requirements.
+Note that @emph{the APIs described here are still highly experimental},
+and will very likely undergo tightenings and likely also extensive changes
+in the future, to accommodate for new features or to satisfy additional
+portability requirements.
 
 The main characteristic of these APIs is that they are designed to share
 as much infrastructure, semantics, and implementation details as possible
-- 
1.7.7.3