In nearly all cases the auto-line breaks can be on spaces in the
string. The only exception (so far) is DPP which displays a very
long URI without any spaces. When this is displayed a single
character was lost on each break. This was due to the current line
being NULL terminated prior to the next line string being returned.
To handle both cases the next line is copied prior to terminating
the current line. The offsets were modified slightly so the line
will be broken *after* the space, not on the space. This leaves
the space at the end of the current line which is invisible to the
user but allows the no-space case to also work without loss of
the last character (since that last character is where the space
normally would be).
dc6575130e