harmonise tar xzf commands

build/scripts/backintime.sh

@@ -7,7 +7,7 @@ apt_install_permanent gettext python3 python3-dbus
 ## Back In Time
 cd /opt
 wget https://github.com/bit-team/backintime/releases/download/v$BACKINTIME_VERSION/backintime-$BACKINTIME_VERSION.tar.gz
-tar zxvf backintime-$BACKINTIME_VERSION.tar.gz
+tar xzf backintime-$BACKINTIME_VERSION.tar.gz
 cd backintime-$BACKINTIME_VERSION/common
 ./configure
 make

build/scripts/csync.sh

@@ -14,7 +14,7 @@ apt_install_permanent librsync-dev libsqlite3-dev libgnutls28-dev pkg-config
 ## Csync2
 cd /opt
 wget http://oss.linbit.com/csync2/csync2-$CSYNC_VERSION.tar.gz
-tar xzvf csync2-$CSYNC_VERSION.tar.gz
+tar xzf csync2-$CSYNC_VERSION.tar.gz
 cd csync2-$CSYNC_VERSION
 ./configure
 sed -i 's/\(verify_peername(\(const[^)]*\))\)/\1 {return 1;} int disabled(\2)/' daemon.c

build/scripts/ffmpeg-kodi.sh

@@ -6,7 +6,7 @@ export_env KODI_BRANCH Jarvis
 ## FFmpeg
 cd /opt
 wget -O ffmpeg-$FFMPEG_VERSION.tar.gz https://github.com/xbmc/FFmpeg/archive/$FFMPEG_VERSION-$KODI_BRANCH-$KODI_VERSION.tar.gz
-tar xvzf ffmpeg-$FFMPEG_VERSION.tar.gz
+tar xzf ffmpeg-$FFMPEG_VERSION.tar.gz
 mv FFmpeg-$FFMPEG_VERSION-$KODI_BRANCH-$KODI_VERSION ffmpeg-$FFMPEG_VERSION
 cd ffmpeg-$FFMPEG_VERSION
 ./configure --enable-gpl --enable-postproc --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libspeex --enable-shared --enable-pthreads --enable-libfaac --enable-nonfree

build/scripts/syncthing.sh

@@ -5,7 +5,7 @@ export_env SYNCTHING_VERSION 0.14.30
 # Syncthing
 cd /opt
 curl -L -o syncthing.tar.gz https://github.com/syncthing/syncthing/releases/download/v$SYNCTHING_VERSION/syncthing-linux-amd64-v$SYNCTHING_VERSION.tar.gz
-tar -xzvf syncthing.tar.gz
+tar xzf syncthing.tar.gz
 rm -f syncthing.tar.gz
 mv syncthing-linux-amd64-v* syncthing
 rm -rf syncthing/etc