--ignore-blank-lines::
Ignore changes whose lines are all blank.
+-I<regex>::
+--ignore-matching-lines=<regex>::
+ Ignore changes whose all lines match <regex>. This option may
+ be specified more than once.
+
--inter-hunk-context=<lines>::
Show the context between diff hunks, up to the specified number
of lines, thereby fusing hunks that are close to each other.