python3-magic: upgrade 0.4.18 -> 0.4.20

License changed as there was additional copyright information added
but the underlying license did not change.

(From OE-Core rev: 97f5846586076c20289a2a43c7ddfa610a6aa5d9)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python3-magic_0.4.20.bb

@@ -0,0 +1,21 @@
+SUMMARY = "File type identification using libmagic"
+DESCRIPTION = "This module uses ctypes to access the libmagic file type \
+    identification library. It makes use of the local magic database and supports \
+    both textual and MIME-type output."
+HOMEPAGE = "http://github.com/ahupp/python-magic"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=61495c152d794e6be5799a9edca149e3"
+
+PYPI_PACKAGE = "python-magic"
+
+inherit pypi setuptools3
+
+SRC_URI[sha256sum] = "0cc52ccad086c377b9194014e3dbf98d94b194344630172510a6a3e716b47801"
+
+RDEPENDS_${PN} += "file \
+                   ${PYTHON_PN}-ctypes \
+                   ${PYTHON_PN}-io \
+                   ${PYTHON_PN}-shell"
+
+BBCLASSEXTEND = "native"