Backport 51663:
Doc fix: hashlib objects don't always return a digest of 16 bytes.
diff --git a/Doc/lib/libhashlib.tex b/Doc/lib/libhashlib.tex
index 62e3fc4..17f5179 100644
--- a/Doc/lib/libhashlib.tex
+++ b/Doc/lib/libhashlib.tex
@@ -86,8 +86,8 @@
\begin{methoddesc}[hash]{digest}{}
Return the digest of the strings passed to the \method{update()}
-method so far. This is a 16-byte string which may contain
-non-\ASCII{} characters, including null bytes.
+method so far. This is a string of \member{digest_size} bytes which may
+contain non-\ASCII{} characters, including null bytes.
\end{methoddesc}
\begin{methoddesc}[hash]{hexdigest}{}