Update build-docker.sh

scripts/build-docker.sh

@@ -36,22 +36,23 @@ build_flatpak() {
 build_appimage() {
     # docker-image: ubuntu:14.04
 
-    apt-get update -qq
-    apt-get -y install curl git
-    #apt-get -y install build-essential qt5-default libqt5websockets5-dev
-    #apt-get -y install cmake libssl-dev libcurl4-gnutls-dev libxpm-dev
-    apt-get -y install libssl1.0.0 zlib1g
+    apt update -qq
+    apt -y install software-properties-common
+    apt -y install curl git
+    #apt -y install build-essential qt5-default libqt5websockets5-dev
+    #apt -y install cmake libssl-dev libcurl4-gnutls-dev libxpm-dev
+    apt -y install libssl1.0.0 zlib1g
 
     add-apt-repository -y ppa:beineri/opt-qt593-trusty
     echo 'deb http://download.opensuse.org/repositories/home:/TheAssassin:/AppImageLibraries/xUbuntu_14.04/ /' > /etc/apt/sources.list.d/curl-httponly.list
     curl -fsSL https://download.opensuse.org/repositories/home:TheAssassin:AppImageLibraries/xUbuntu_14.04/Release.key | apt-key add -
-    apt-get update -qq
+    apt update -qq
 
-    apt-get -y install build-essential qt59base qt59websockets
+    apt -y install build-essential qt59base qt59websockets
     source /opt/qt59/bin/qt59-env.sh
 
     curl -fsSL https://cmake.org/files/v3.10/cmake-3.10.0-rc5-Linux-x86_64.tar.gz | tar -xz --strip-components=1 -C /
-    apt-get -y install libssl-dev libcurl3 libcurl3-gnutls libxpm-dev
+    apt -y install libssl-dev libcurl3 libcurl3-gnutls libxpm-dev
 
     useradd -m ${PKGUSER}
     export HOME="/home/${PKGUSER}"