From: Marek BehĂșn <marek.be...@nic.cz>

This function actually returns:
- the number of bytes written into @buf excluding the terminating
  NULL-byte, if there was enough space in @buf
- the number of bytes written into @buf including the terminating
  NULL-byte, if there wasn't enough space in @buf
- -1 if the variable is not found

Signed-off-by: Marek BehĂșn <marek.be...@nic.cz>
Reviewed-by: Simon Glass <s...@chromium.org>
---
 include/env.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!

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