; Fix documentation of secure-hash functions

* src/fns.c (Fsecure_hash):
* doc/lispref/text.texi (Checksum/Hash):
* lisp/subr.el (sha1): Fix documentation wrt to the number of
bytes 'secure-hash' and its variants return when BINARY is
non-nil.  Reported by Pip Cet <pipcet@protonmail.com>.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/fns.c b/src/fns.c
index cb3e25811ea..6133c20573a 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -6402,7 +6402,9 @@ whole OBJECT.
 
 The full list of algorithms can be obtained with `secure-hash-algorithms'.
 
-If BINARY is non-nil, returns a string in binary form.
+If BINARY is non-nil, returns a string in binary form.  In this case,
+the function returns a unibyte string whose length is half the number
+of characters it returns when BINARY is nil.
 
 Note that MD5 and SHA-1 are not collision resistant and should not be
 used for anything security-related.  For these applications, use one