## rostring

### Instructions

Write a program that takes a `string` and displays this `string` after rotating it
one word to the left.

Thus, the first word becomes the last, and others stay in the same order.

A word is a sequence of **alphanumerical** characters.

Words will be separated by only one space in the output.

If the number of arguments is different from 1, the program displays a newline.

### Usage

```console
student@ubuntu:~/[[ROOT]]/rostring$ go build
student@ubuntu:~/[[ROOT]]/rostring$ ./rostring "abc   " | cat -e
abc$
student@ubuntu:~/[[ROOT]]/rostring$ ./rostring "Let there     be light"
there be light Let
student@ubuntu:~/[[ROOT]]/rostring$ ./rostring "     AkjhZ zLKIJz , 23y"
zLKIJz , 23y AkjhZ
student@ubuntu:~/[[ROOT]]/rostring$ ./rostring | cat -e
$
student@ubuntu:~/[[ROOT]]/rostring$
```