py-portend: update to 2.4; add python 37; add missing dependency

python/py-portend/Portfile

@@ -7,7 +7,7 @@ set _name           portend
 set _n              [string index ${_name} 0]
 
 name                py-${_name}
-version             2.3
+version             2.4
 categories-append   devel
 platforms           darwin
 supported_archs     noarch
@@ -23,15 +23,16 @@ homepage            https://pypi.python.org/pypi/${_name}
 distname            ${_name}-${version}
 master_sites        pypi:${_n}/${_name}/
 
-checksums           rmd160  9bbb0301bdcdc4f036e7475f8ae22f2eacffe8fa \
-                    sha256  b7ce7d35ea262415297cbfea86226513e77b9ee5f631d3baa11992d663963719 \
-                    size    8585
+checksums           rmd160  2a1845d7af1716a65acdb59719e235d5fe894bd6 \
+                    sha256  507e1f76eb6deec0cc15045d1140a07874f44d02eec021e8fd383557d99fe93d \
+                    size    11846
 
-python.versions     27 34 35 36
+python.versions     27 34 35 36 37
 
 if {${name} ne ${subport}} {
     depends_build-append    port:py${python.version}-setuptools_scm
-    depends_lib-append      port:py${python.version}-six \
+    depends_lib-append      port:py${python.version}-jaraco.functools \
+                            port:py${python.version}-six \
                             port:py${python.version}-tempora
 
     livecheck.type  none