devel/py-dateutil : update to 2.7.4

Index: Makefile
===================================================================
RCS file: /cvs/ports/devel/py-dateutil/Makefile,v
retrieving revision 1.27
diff -u -p -r1.27 Makefile
--- Makefile 7 Sep 2018 11:22:25 -0000 1.27
+++ Makefile 28 Oct 2018 13:16:53 -0000
@@ -2,7 +2,7 @@

COMMENT = Python API for advanced date calculations

-MODPY_EGG_VERSION = 2.7.3
+MODPY_EGG_VERSION = 2.7.4
DISTNAME = python-dateutil-${MODPY_EGG_VERSION}
PKGNAME = ${DISTNAME:S/^python-/py-/}
CATEGORIES = devel
Index: distinfo
===================================================================
RCS file: /cvs/ports/devel/py-dateutil/distinfo,v
retrieving revision 1.13
diff -u -p -r1.13 distinfo
--- distinfo 7 Sep 2018 11:22:25 -0000 1.13
+++ distinfo 28 Oct 2018 13:16:53 -0000
@@ -1,2 +1,2 @@
-SHA256 (python-dateutil-2.7.3.tar.gz) = 4nAB3jL2J8IjgKaIvMQ86DUEp7xdpHIgm0xw8Cgp8Lg=
-SIZE (python-dateutil-2.7.3.tar.gz) = 302871
+SHA256 (python-dateutil-2.7.4.tar.gz) = LxPT6iNq6yN+cljVcpxG6v4VBv1/hQfzRzBzTtizdFQ=
+SIZE (python-dateutil-2.7.4.tar.gz) = 302229
Hi,

Here is a patch to update devel/py-dateutil to 2.7.4, it build and test well
on my amd64 system.
OK ?

Cheers,
wen