[PR PATCH] [Closed]: traffic: uniform stats output

[github at samba.org]

There's a closed pull request on the Samba Samba Github repository

traffic: uniform stats output
https://github.com/samba-team/samba/pull/184
Description: The original code is trying to output different data format for tty or file.
This is unnecessary and cause confusion while writing script to parse result.

The human-readable one is also easy for code to parse.
Remove if check for isatty(), just make output the same.

Signed-off-by: Joe Guo <joeg at catalyst.net.nz>