Clarify the docs for TransientResource.
diff --git a/Doc/lib/libtest.tex b/Doc/lib/libtest.tex
index d258089..5e185fa 100644
--- a/Doc/lib/libtest.tex
+++ b/Doc/lib/libtest.tex
@@ -292,10 +292,11 @@
The \module{test.test_support} module defines the following classes:
\begin{classdesc}{TransientResource}{exc\optional{, **kwargs}}
-Create a context manager that raises \class{ResourceDenied} if the specified
-exception type is raised. Any keyword arguments are treated as name/value
-pairs to be compared against any exception raised with the \code{with}
-statement. Only if all pairs match is \class{ResourceDenied} raised.
+Instances are a context manager that raises \class{ResourceDenied} if the
+specified exception type is raised. Any keyword arguments are treated as
+attribute/value pairs to be compared against any exception raised within the
+\code{with} statement. Only if all pairs match properly against attributes on
+the exception is \class{ResourceDenied} raised.
\versionadded{2.6}
\end{classdesc}