callback: use variable length for progressbar text

This fixes FS#17523

We always used a fixed value of 50 for textlen, which is often not enough
for download progress bar. At least we can use a bigger width on large
terminal (e.g. 60% of width) and keep 50 as minimum.

before:
 nautilus-2.28.4-1-x...     5.7M  789.2K/s 00:00:07 [####################################] 100%
after:
 nautilus-2.28.4-1-x86_64         5.7M  770.7K/s 00:00:08 [##############################] 100%

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions