Function: org-file-has-changed-p
org-file-has-changed-p is a function alias for file-has-changed-p,
defined in files.el.gz.
Signature
(org-file-has-changed-p FILE &optional TAG)
Documentation
Return non-nil if FILE has changed.
The size and modification time of FILE are compared to the size
and modification time of the same FILE during a previous
invocation of file-has-changed-p. Thus, the first invocation
of file-has-changed-p always returns non-nil when FILE exists.
The optional argument TAG, which must be a symbol, can be used to
limit the comparison to invocations with identical tags; it can be
the symbol of the calling function, for example.