simplewallet: fix line-wrap spacing

[hinto-janai]

Before

This is the command line monero wallet. It needs to connect to a monero
daemon to work correctly.
WARNING: Do not reuse your Monero keys on another fork, UNLESS this fork has key reuse mitigations built in. Doing so will harm your privacy.

NOTE: the following 25 words can be used to recover access to your wallet. Write them down and store them somewhere safe and secure. Please do not store them in your email or on file storage services outside of your immediate control.

After

This is the command line Monero wallet. It needs to connect to a Monero daemon to work correctly.
WARNING: Do not reuse your Monero keys on another fork, UNLESS this fork has key reuse mitigations built in. Doing so will harm your privacy.

NOTE: the following 25 words can be used to recover access to your wallet.
Write them down and store them somewhere safe and secure. Please do not store
them in your email or on file storage services outside of your immediate control.