entrypoint.sh has invalid logic

[kamilsk]

Strip directory path and .SUFFIX from FILE
/entrypoint.sh: line 194: ${site}: ambiguous redirect
sed: /etc/nginx/conf.d/.conf: No such file or directory
sed: /etc/nginx/conf.d/.conf: No such file or directory
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
  configuration /etc/nginx/conf.d/.conf is updated
done
2019/11/20 20:37:08 [notice] 51#51: signal process started