emacs-27 a76af88: Tweak mutability doc a bit more

[Paul Eggert]

branch: emacs-27
commit a76af88dd872091f78bb1a4716750934f6fbaab3
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>

    Tweak mutability doc a bit more
    
    Inspired by a comment from Michael Heerdegen (Bug#40671#114).
    * doc/lispref/objects.texi (Constants and Mutability): Tweak further.
---
 doc/lispref/objects.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/lispref/objects.texi b/doc/lispref/objects.texi
index 1eda94a..b4e9ff4 100644
--- a/doc/lispref/objects.texi
+++ b/doc/lispref/objects.texi
@@ -2401,8 +2401,8 @@ literal @code{"aaa"} yields a constant string, whereas 
the function
 call @code{(make-string 3 ?a)} yields a mutable string that can be
 changed via later calls to @code{aset}.
 
-  A mutable object can become constant if it is passed to the
-@code{eval} function, because a program should not modify an object
+  A mutable object can become constant if it is part of an expression
+that is evaluated, because a program should not modify an object
 that is being evaluated.  The reverse does not occur: constant objects
 should stay constant.