message: ENH: Use GitHub for Docker clone source for faster downloads
diff: @@ -8,7 +8,7 @@ WORKDIR /usr/src
  ENV ITK_GIT_TAG f8979fb3eb80ccdefbc92c3aa2264c74a18e96f8
  ENV CFLAGS="-Wno-warn-absolute-paths --memory-init-file 0 -s DISABLE_EXCEPTION_CATCHING=0 -s ALLOW_MEMORY_GROWTH=1"
  ENV CXXFLAGS="${CFLAGS} -std=c++11"
  -RUN git clone https://itk.org/ITK.git && \
  +RUN git clone https://github.com/InsightSoftwareConsortium/ITK.git && \
  cd ITK && \
  git checkout ${ITK_GIT_TAG} && \
  cd ../ && \
  