fix multiline for docker (#694)

docker/Dockerfile-base

@@ -14,7 +14,7 @@ ARG CUDA="118"
 ENV PYTHON_VERSION=$PYTHON_VERSION
 
 RUN apt-get update \
-    && apt-get install -y wget git build-essential ninja-build git-lfs libaio-dev && rm -rf /var/lib/apt/lists/*
+    && apt-get install -y wget git build-essential ninja-build git-lfs libaio-dev && rm -rf /var/lib/apt/lists/* \
     && wget \
     https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh \
     && mkdir /root/.conda \