It's ok if this is not implemented, and throws an error.
+If the RCS cannot determine a ctime for the file, return 0.
+
#### `rcs_getmtime($)`
This is used to get the page modification time for a file from the RCS, by
It's ok if this is not implemented, and throws an error.
+If the RCS cannot determine a mtime for the file, return 0.
+
#### `rcs_receive()`
This is called when ikiwiki is running as a pre-receive hook (or