diffoscope: update to 113, switch to python37

sysutils/diffoscope/Portfile

@@ -4,7 +4,7 @@ PortSystem          1.0
 PortGroup           python 1.0
 
 name                diffoscope
-version             93
+version             113
 categories          sysutils python
 platforms           darwin
 supported_archs     noarch
@@ -24,12 +24,11 @@ long_description    diffoscope will try to get to the bottom of what makes \
 homepage            https://diffoscope.org/
 master_sites        pypi:d/diffoscope
 
-checksums           md5     0141fdc8a6752a5fdf40b8f6f581f02b \
-                    rmd160  eab00aa0a71c26b113933cf1cf3e0935ae3a1581 \
-                    sha256  d2164f9d83c7469047a3cefa088ac69df8593d1cd48cf9e100539e808eb3203d \
-                    size    9494933
+checksums           rmd160  c75e2c3ce0c67d0b341885bfdb1f2adc0cb71e40 \
+                    sha256  9c9018ce0e4a996466feac654cd601c45d8ad1c01a4a799615ae63bd4dcc9283 \
+                    size    1588576
 
-python.default_version 36
+python.default_version 37
 
 depends_build-append \
                     port:py${python.version}-setuptools