Update optimize dockerfile

Signed-off-by: Ethan <[email protected]>

Dockerfile

@@ -1,25 +1,26 @@
 # Copyright (c) 2022 LG Electronics Inc.
 # SPDX-License-Identifier: Apache-2.0
-FROM	ubuntu:20.04
+FROM ubuntu:20.04
 
-RUN 	apt-get update && apt-get install sudo -y
+RUN	apt-get update && apt-get install sudo -y
 RUN	ln -sf /bin/bash /bin/sh
 
-COPY	. /app
+COPY . /app
 WORKDIR	/app
 
-ENV 	DEBIAN_FRONTEND=noninteractive
+ENV	DEBIAN_FRONTEND=noninteractive
 
-RUN	apt-get -y install build-essential
-RUN     apt-get -y install python3 python3-distutils python3-pip python3-dev
-RUN	apt-get -y install python3-intbitset python3-magic
-RUN	apt-get -y install libxml2-dev
-RUN	apt-get -y install libxslt1-dev
-RUN 	apt-get -y install libhdf5-dev
-RUN 	apt-get -y install bzip2 xz-utils zlib1g libpopt0 
-RUN	apt-get -y install gcc-10 g++-10
-RUN	pip3 install --upgrade pip
-RUN	pip3 install .
-RUN	pip3 install dparse
+RUN	apt-get -y install build-essential \
+     && apt-get -y install python3-distutils python3-pip python3-dev \
+     &&	apt-get -y install python3-intbitset python3-magic \
+     &&	apt-get -y install libxml2-dev \
+     &&	apt-get -y install libxslt1-dev \
+     && apt-get -y install libhdf5-dev \
+     && apt-get -y install bzip2 xz-utils zlib1g libpopt0  \
+     &&	apt-get -y install gcc-10 g++-10
 
-ENTRYPOINT ["/usr/local/bin/fosslight"] 
+RUN pip3 install --upgrade pip \
+     &&	pip3 install . \
+     &&	pip3 install dparse
+
+ENTRYPOINT ["/usr/local/bin/fosslight"]