dist: scylla_sysconfig_setup uses current sysconfig values as default value
dist: scylla_sysconfig_setup uses current sysconfig values as default value

Signed-off-by: Takuya ASADA <4ebfb6f510af412d6e89fefa3ab96d9c8b5e3fff@scylladb.com>

duarten/scylla,avikivity/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,kjniemi/scylla,kjniemi/scylla,avikivity/scylla,scylladb/scylla,scylladb/scylla,raphaelsc/scylla,duarten/scylla,raphaelsc/scylla,raphaelsc/scylla,duarten/scylla,kjniemi/scylla