date-formats.txt: fix list continuation

The blank line before the lone "+" means it isn't detected as a list
continuation, but instead renders literally, at least with AsciiDoc.
Drop the empty line and, while at it, add a closing period to the
preceding paragraph.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/Documentation/date-formats.txt b/Documentation/date-formats.txt
index 7e7eaba..f1097fa 100644
--- a/Documentation/date-formats.txt
+++ b/Documentation/date-formats.txt
@@ -22,8 +22,7 @@
 	`2005-04-07T22:13:13`. The parser accepts a space instead of the
 	`T` character as well. Fractional parts of a second will be ignored,
 	for example `2005-04-07T22:13:13.019` will be treated as
-	`2005-04-07T22:13:13`
-
+	`2005-04-07T22:13:13`.
 +
 NOTE: In addition, the date part is accepted in the following formats:
 `YYYY.MM.DD`, `MM/DD/YYYY` and `DD.MM.YYYY`.