Tweak setcar-related wording

* doc/lispref/eval.texi (Self-Evaluating Forms):
Change “primitives” to “operations”.
Problem reported by Štěpán Němec in:
https://lists.gnu.org/r/emacs-devel/2020-04/msg01146.html

diff --git a/doc/lispref/eval.texi b/doc/lispref/eval.texi
index f33c2faac107618818303450a9839bd4d3d58faa..021604c5142dd4e786fe09476e9605f0d91a02d2 100644 (file)
--- a/doc/lispref/eval.texi
+++ b/doc/lispref/eval.texi
@@ -160,7 +160,7 @@ contents unchanged.
 
   A self-evaluating form yields constant conses, vectors and strings, and you
 should not attempt to modify their contents via @code{setcar}, @code{aset} or
-similar primitives.  The Lisp interpreter might unify the constants
+similar operations.  The Lisp interpreter might unify the constants
 yielded by your program's self-evaluating forms, so that these
 constants might share structure.  @xref{Constants and Mutability}.