How To Successfully File Your Unemployment Weekly Claim Iowa To Ensure You Receive Your Benefits On Time

What is the meaning of the following sentence?

You have successfully split a hair that did not need to be split.

This post on the programmers stack exchange.

How To Successfully File Your Unemployment Weekly Claim Iowa To Ensure You Receive Your Benefits On Time 3

And the message is shown in a pop up window.

However, i am not sure which form is better to use.

How To Successfully File Your Unemployment Weekly Claim Iowa To Ensure You Receive Your Benefits On Time 5

Please, explain which sentence is better and why.

You have successfully registered and.

How To Successfully File Your Unemployment Weekly Claim Iowa To Ensure You Receive Your Benefits On Time 7

When writing an instruction about connecting to a computer using ssh, telnet, etc. , i'm not sure what spacing to use in this familiar spoken phrase:

Log in to host. com log into host. com login to