diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index a2a84ad20..b8206bc03 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -2427,13 +2427,13 @@ INFO may provide the values of these header arguments (in the
 		  (delete-region (point) (org-babel-result-end)))
 		 ((member "append" result-params)
 		  (goto-char (org-babel-result-end)) (setq beg (point-marker)))
-		 ;; ((member "prepend" result-params)) ; Do nothing.  Already there.
+		 ;; ((member "prepend" result-params)) ; already there
                  )
 		(setq results-switches
 		      (if results-switches (concat " " results-switches) ""))
 		(let ((wrap
-		       (lambda ( start finish &optional no-escape no-newlines
-			    inline-start inline-finish)
+		       (lambda (start finish &optional no-escape no-newlines
+				      inline-start inline-finish)
 			 (when inline
 			   (setq start inline-start)
 			   (setq finish inline-finish)
diff --git a/lisp/org-macs.el b/lisp/org-macs.el
index fabeac4d2..306990280 100644
--- a/lisp/org-macs.el
+++ b/lisp/org-macs.el
@@ -37,9 +37,16 @@
 ;;; Org version verification.
 
 (defvar org--inhibit-version-check nil
-  "When non-nil, assume that Org is a part of Emacs source.
+  "When non-nil, skip the detection of mixed-versions situations.
 For internal use only.  See Emacs bug #62762.
-This variable is only supposed to be changed by Emacs build scripts.")
+This variable is only supposed to be changed by Emacs build scripts.
+When nil, Org tries to detect when Org source files were compiled with
+a different version of Org (which tends to lead to incorrect `.elc' files),
+or when the current Emacs session has loaded a mix of files from different
+Org versions (typically the one bundled with Emacs and another one installed
+from GNU ELPA), which can happen if some parts of Org were loaded before
+`load-path' was changed (e.g. before the GNU-ELPA-installed Org is activated
+by `package-activate-all').")
 (defmacro org-assert-version ()
   "Assert compile time and runtime version match."
   ;; We intentionally use a more permissive `org-release' instead of