Fix linewrap
Fix linewrap

If a line was exactly the length of `linewrap`, the extra space was
causing the next line to be blank. But if the line is empty, we need the
space to maintain the `| ` sidebar.

nikvdp/jrnl,zdravi/jrnl,rzyns/jrnl,MSylvia/jrnl,maebert/jrnl,Shir0kamii/jrnl,dzeban/jrnl,MinchinWeb/jrnl,beni55/jrnl,notbalanced/jrnl,flight16/jrnl,philipsd6/jrnl,cloudrave/jrnl-todos