[LTP] [PATCH 1/1] tst_test.sh: Fix check for $TST_DEVICE

[Petr Vorel]

Hi, 
> Hi!
> > When tst_device acquire call fails, it outputs into stdout,
> > therefore the content is actually help message.
> > => Check for file presence rather than variable not being empty.

> > Fixes: c5ac5d712 tst_test.sh: Make use of tst_device helper

> Good catch, I guess that it also wouldn't harm if we changed the helper
> to print the help message to stderr as well.

Pushed, with your Suggested-by:


Kind regards,
Petr