Moves iter to the start of the next visible line. Returns TRUE if there
was a next line to move to, and FALSE if iter was simply moved to
the end of the buffer and is now not dereferenceable, or if iter was
already at the end of the buffer.
Since 2.8
Moves iter to the start of the next visible line. Returns TRUE if there was a next line to move to, and FALSE if iter was simply moved to the end of the buffer and is now not dereferenceable, or if iter was already at the end of the buffer. Since 2.8