+ "Reads logical pathname translations from SYS:SITE;HOST.TRANSLATIONS.NEWEST,
+with HOST replaced by the supplied parameter. Returns T on success.
+
+If HOST is already defined as logical pathname host, no file is loaded and NIL
+is returned.
+
+The file should contain a single form, suitable for use with
+\(SETF LOGICAL-PATHNAME-TRANSLATIONS).
+
+Note: behaviour of this function is higly implementation dependent, and
+historically it used to be a no-op in SBcL -- the current approach is somewhat
+experimental and subject to change."