base-files: sysupgrade: quote source image name
get_image() eval a filename without quoting it, resulting in errors with
filenames containing characters that need to be escaped.
$ sysupgrade -T -f ./cfg\(12\).tar.gz img.bin; echo $?
Image check 'platform_check_image' failed.
Invalid config file. Please use only .tar.gz files
1
$ mv cfg\(12\).tar.gz cfg_12.tar.gz
$ mv img\(1\).bin img.bin
sysupgrade -T -f ./cfg_12.tar.gz img.bin; echo $?
0
Enclose the content of $from in double quotes.
Signed-off-by: Adrien Schildknecht <adrien+dev@schischi.me>
Backport of r46919
git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@47028
3c298f89-4303-0410-b956-
a3cf2f4a3e73