example/linux-example: add newline in printf format

[Junbo-Zheng]

example/linux-example: add newline in printf format

before

➜  /home/mi/xiaomi/embedded-cli git:(dev) ./build/examples/linux-example/embedded_cli_linux
Cli is running. Press 'Esc' to exit
Type "help" for a list of commands
Use backspace and tab to remove chars and autocomplete
> 123 456 789
Received command: 123
                     Arg 0: 456
                               Arg 1: 789
                                         >
>
> abc edf ghi
Received command: abc
                     Arg 0: edf
                               Arg 1: ghi
                                         >
>
> exit
Cli will shutdown now...
➜  /home/mi/xiaomi/embedded-cli git:(dev)

after

➜  /home/mi/xiaomi/embedded-cli git:(dev) ✗ ./build/examples/linux-example/embedded_cli_linux
Cli is running. Press 'Esc' to exit
Type "help" for a list of commands
Use backspace and tab to remove chars and autocomplete
> 123 456 789
Received command: 123
Arg 0: 456
Arg 1: 789
> abc def ghi
Received command: abc
Arg 0: def
Arg 1: ghi
>
>
> exit
Cli will shutdown now...

Signed-off-by: Junbo Zheng zhengjunbo1@xiaomi.com

[funbiscuit]

Thanks for your contributions!