* Fix native comp for non trivial function names (bug#52833)

* lisp/emacs-lisp/comp.el (comp-c-func-name): Fix native compilation
for functions with function names containing non trivial
characters (bug#52833).

lisp/emacs-lisp/comp.el

@@ -1181,7 +1181,9 @@ clashes."
 	                   for i across orig-name
 	                   for byte = (format "%x" i)
 	                   do (aset str j (aref byte 0))
-	                      (aset str (1+ j) (aref byte 1))
+			      (aset str (1+ j) (if (length> byte 1)
+						   (aref byte 1)
+						 ?\_))
 	                   finally return str))
          (human-readable (string-replace
                           "-" "_" orig-name))