git-am.txt: --ignore-date flag is not passed to git-apply

Signed-off-by: Ronald Wampler <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: rdwampler

Documentation/git-am.txt

@@ -65,7 +65,6 @@ default.   You can use `--no-utf8` to override this.
 	it is supposed to apply to and we have those blobs
 	available locally.
 
---ignore-date::
 --ignore-space-change::
 --ignore-whitespace::
 --whitespace=<option>::