Merge branch 'fix-regressions' of github.com:RonnyPfannschmidt/setuptools_scm into fix-regressions

Author: RonnyPfannschmidt

testing/Dockerfile.busted-buster

@@ -1,3 +1,3 @@
 FROM debian:buster
 RUN apt-get update -q && apt-get install -yq python3-pip python3-setuptools
-RUN echo -n "[easy_install]\nallow_hosts=localhost\nfind_links=/dist" > /root/.pydistutils.cfg
+RUN printf "[easy_install]\nallow_hosts=localhost\nfind_links=/dist\n" > /root/.pydistutils.cfg