The scope of the segment_header *seg is localized into for-loop

Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
refactor error message

Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
refactor do_migrate_proc: factor should_migrate(), calc_nr_mig()

Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
rollback config for development

Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
Merge branch 'feature/factor-out-calc-nr-mig' into develop