[LEDE-DEV] [PATCH v2 2/4] base-files: add sysupgrade -u to skip unchanged files

[Stefan Lippers-Hollmann]

Hi

On 2018-04-04, Luiz Angelo Daros de Luca wrote:
> With '-u', for a file /aaa/bbb/ccc enlisted for backup,
> it will only get into backup if /rom/aaa/bbb/ccc does not
> exist or /aaa/bbb/ccc is different from /rom/aaa/bbb/ccc.
> 
> It also works with '-c', but only effective for files touched
> but not modified.
[...]

This patch series works very nicely for me on ar71xx, brcm47xx, ipq806x
and lantiq, -u unclutters the overlay contents quite significantly and
makes spotting (manual) changes a lot easier.

Thanks
	Stefan Lippers-Hollmann