Backport commit ec90220 from Emacs

Expunge "allow" + infinitive from source and doc, part 2.
ec90220ac1bd81437654d07b769819e1dcd24de5
Alan Mackenzie
Mon Jan 25 12:35:15 2016 +0000

lisp/org-element.el

@@ -625,7 +625,7 @@ is cleared and contents are removed in the process."
 ;; cannot contain other greater elements of their own type.
 ;;
 ;; Beside implementing a parser and an interpreter, adding a new
-;; greater element requires to tweak `org-element--current-element'.
+;; greater element requires tweaking `org-element--current-element'.
 ;; Moreover, the newly defined type must be added to both
 ;; `org-element-all-elements' and `org-element-greater-elements'.
 

lisp/org-mobile.el

@@ -88,7 +88,7 @@ org-agenda-text-search-extra-files
 Encryption uses AES-256, with a password given in
 `org-mobile-encryption-password'.
 When nil, plain files are kept on the server.
-Turning on encryption requires to set the same password in the MobileOrg
+Turning on encryption requires setting the same password in the MobileOrg
 application.  Before turning this on, check of MobileOrg does already
 support it - at the time of this writing it did not yet."
   :group 'org-mobile