check for package manager

docker-mods/qbittorrent/root/etc/cont-init.d/98-themepark

@@ -27,9 +27,14 @@ if ! [[ -x "$(command -v svn)" ]]; then
 echo '--------------------------'
 echo '| Installing svn package |'
 echo '--------------------------'
+    if [ -x "$(command -v apk)" ]; then 
+      apk update && \
+      apk add --no-cache subversion
+    elif [ -x "$(command -v apt-get)" ]; then
       apt-get update && \
       apt-get install -y subversion
     fi
+fi
 
 # Display variables for troubleshooting 
 echo -e "Variables set:\\n\