Fix small typos in docstrings.

lisp/org-exp.el

@@ -807,7 +807,7 @@ modified) list.")
 (defvar org-export-allow-BIND-local nil)
 (defun org-export-confirm-letbind ()
   "Can we use #+BIND values during export?
-By default this will ask fro confirmation by the user, to divert possible
+By default this will ask for confirmation by the user, to divert possible
 security risks."
   (cond
    ((not org-export-allow-BIND) nil)

lisp/org-publish.el

@@ -295,7 +295,7 @@ You could use brackets to delimit on what part the link will be.
   "Return t if FILENAME should be published in PUB-DIR using PUB-FUNC.
 TRUE-PUB-DIR is where the file will truly end up.  Currently we are not using
 this - maybe it can eventually be used to check if the file is present at
-the target location, and how old it is.  Right ow we cannot do this, because
+the target location, and how old it is.  Right now we cannot do this, because
 we do not know under what file name the file will be stored - the publishing
 function can still decide about that independently."
   (let ((rtn

lisp/org.el

@@ -12275,7 +12275,7 @@ Can be set by the action argument to `org-scan-tag's and `org-map-entries'.")
 (defvar org-scanner-tags nil
   "The current tag list while the tags scanner is running.")
 (defvar org-trust-scanner-tags nil
-  "Should `org-get-tags-at' use the tags fro the scanner.
+  "Should `org-get-tags-at' use the tags for the scanner.
 This is for internal dynamical scoping only.
 When this is non-nil, the function `org-get-tags-at' will return the value
 of `org-scanner-tags' instead of building the list by itself.  This