df: fix size column padding

[Qelxiros]

Similarly to the Used column, GNU df pads an extra space to the right of the Size column.

[cakebaker]

I have to admit I don't understand the reason for this change. Do you have an example where our output differs from the output of GNU df without this change?

[Qelxiros]

Here's the output of df -h with GNU df and uutils df (Arch Linux 6.9.1-arch1-2, if it matters):
GNU:

Filesystem      Size  Used Avail Use% Mounted on
dev             3.7G     0  3.7G   0% /dev
run             3.8G  1.5M  3.8G   1% /run
efivarfs        246K   50K  192K  21% /sys/firmware/efi/efivars
/dev/nvme0n1p3  230G  136G   65G  68% /
tmpfs           3.8G   86M  3.7G   3% /dev/shm
tmpfs           3.8G   34M  3.7G   1% /tmp
/dev/nvme0n1p1  511M  165M  347M  33% /boot
tmpfs           761M   64K  761M   1% /run/user/1000

uutils:

Filesystem     Size  Used Avail Use% Mounted on
dev            3.7G     0  3.7G   0% /dev
run            3.8G  1.5M  3.8G   1% /run
efivarfs       246K   50K  192K  21% /sys/firmware/efi/efivars
/dev/nvme0n1p3 230G  136G   65G  68% /
tmpfs          3.8G   86M  3.7G   3% /dev/shm
tmpfs          3.8G   34M  3.7G   1% /tmp
/dev/nvme0n1p1 511M  165M  347M  33% /boot
tmpfs          761M   64K  761M   1% /run/user/1000

[cakebaker]

Ah, now I see, good catch!

[cakebaker]

Thanks!

[sylvestre]

i wish it was covered by a test :(

[cakebaker]

@sylvestre it's covered by an invalid test I'm currently fixing ;-)

[sylvestre]

ok, merci :)