Dockerfile: Update miniconda installer download location & remove unn…

…ecessary flag (pytorch#37082)

Summary:
https://repo.continuum.io/ was permanently moved to https://repo.anaconda.com
No need to specify -O since we have -o
Pull Request resolved: pytorch#37082

Differential Revision: D21182390

Pulled By: malfet

fbshipit-source-id: eeec70a883cbfd14105abd1ac6685f66afc02c02

docker/pytorch/Dockerfile

@@ -12,7 +12,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
      rm -rf /var/lib/apt/lists/*
 
 
-RUN curl -o ~/miniconda.sh -O  https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh  && \
+RUN curl -o ~/miniconda.sh https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh && \
      chmod +x ~/miniconda.sh && \
      ~/miniconda.sh -b -p /opt/conda && \
      rm ~/miniconda.sh && \