*/*: fix MissingRemoteId in metadata.xml

* Manually checked, I hope I caught most errors

Signed-off-by: Lucio Sauer <watermanpaint@posteo.net>

dev-python/python-pidfile/metadata.xml

@@ -1,8 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM 'https://www.gentoo.org/dtd/metadata.dtd'>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
 		<email>smaniotto.nicola@gmail.com</email>
 		<name>Nicola Smaniotto</name>
 	</maintainer>
+	<upstream>
+		<remote-id type="github">mosquito/python-pidfile</remote-id>
+		<remote-id type="pypi">python-pidfile</remote-id>
+	</upstream>
 </pkgmetadata>