How to wrap in complex word boundaries, such as: '/command'

I have set LineBreakMode to WordWrap. I have commands, words which start with '/', (for example: '/help'). If there is no more place in a row word is divided such as '/' stays in one row and other part of the word goes to the second row.
For example:

What I have:

bla bla bla /
command

What I want:

bla bla bla
/command

What should I do?