removed empty line continuation [skip ci]

Dockerfile

@@ -7,24 +7,24 @@ MAINTAINER [email protected]
 
 ENV PATH /opt/conda/bin:$PATH
 #needed to create /usr/share/man/man1 folder to avoid error when installing jre
-RUN apt-get update && mkdir -p /usr/share/man/man1  &&  apt-get install -y curl tree unzip default-jre && pip install --upgrade pip && \
 #python dependencies
+RUN apt-get update && mkdir -p /usr/share/man/man1  &&  apt-get install -y curl tree unzip default-jre && pip install --upgrade pip && \
 conda install tensorflow-gpu==1.14 && conda install -c anaconda opencv scikit-learn pyyaml && conda install -c simpleitk simpleitk && \
 pip install niftynet==0.6.0 niwidgets==0.1.3
 
 #install ants
+#we only need antsRegistration and antsApplyTransforms, can remove everything else
 RUN mkdir -p /opt/ants-2.3.1 && curl -fsSL --retry 5 https://dl.dropbox.com/s/1xfhydsf4t4qoxg/ants-Linux-centos6_x86_64-v2.3.1.tar.gz \
 | tar -xz -C /opt/ants-2.3.1 --strip-components 1 && \
-#we only need antsRegistration and antsApplyTransforms, can remove everything else
 mkdir /opt/ants-2.3.1-minify && for bin in antsRegistration antsApplyTransforms; do mv /opt/ants-2.3.1/${bin} /opt/ants-2.3.1-minify; done  && \
 rm -rf /opt/ants-2.3.1
 ENV PATH "/opt/ants-2.3.1-minify:$PATH"
 
 #install fsl
-RUN mkdir -p /opt/fsl-5.0.11 && curl -fsSL --retry 5 https://fsl.fmrib.ox.ac.uk/fsldownloads/fsl-5.0.11-centos6_64.tar.gz \
-| tar -xz -C /opt/fsl-5.0.11 --strip-components 1 && \
 #we only need {flirt,fslmaths,fslreorient2std,fslroi,fslstats} from fsl, can remove everything else from bin
 # we also remove {data,extras,lib,src,doc} to save space
+RUN mkdir -p /opt/fsl-5.0.11 && curl -fsSL --retry 5 https://fsl.fmrib.ox.ac.uk/fsldownloads/fsl-5.0.11-centos6_64.tar.gz \
+| tar -xz -C /opt/fsl-5.0.11 --strip-components 1 && \
 mkdir /opt/fsl-5.0.11/bin-minify && for bin in flirt fslmaths fslreorient2std fslroi fslstats; do mv /opt/fsl-5.0.11/bin/${bin} /opt/fsl-5.0.11/bin-minify; done && \
 rm -rf /opt/fsl-5.0.11/bin && rm -rf /opt/fsl-5.0.11/data /opt/fsl-5.0.11/extras /opt/fsl-5.0.11/lib /opt/fsl-5.0.11/src /opt/fsl-5.0.11/doc
 ENV FSLDIR "/opt/fsl-5.0.11"