Document that `buffer-string' retains text properties

* doc/lispref/text.texi (Buffer Contents): Mention text properties
in the `buffer-string' documentation.
* src/editfns.c (Fbuffer_string): Mention text properties in the
doc string (bug#47220).

1 files changed, 3 insertions, 1 deletions

diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi
index e47e851b101..44c4b90b2fc 100644
--- a/doc/lispref/text.texi
+++ b/doc/lispref/text.texi
@@ -222,7 +222,9 @@ properties, just the characters themselves.  @xref{Text Properties}.
 
 @defun buffer-string
 This function returns the contents of the entire accessible portion of
-the current buffer, as a string.
+the current buffer, as a string.  If the text being copied has any
+text properties, these are copied into the string along with the
+characters they belong to.
 @end defun
 
   If you need to make sure the resulting string, when copied to a