Line in text -D..+v is not clipped

[PaulWessel]

When drawing a line from the point to the offset text with -Djoffset+vpen, unless you fill in the text box the line shows up:

echo "1.91739628589 1.59140756803 T" | gmt text -R-5/5/-5/5 -Jx1 -D-5c+v0.5p,black -F+f32,Helvetica,black+a0+jCB -W0.25p,red -png

map

It would be better to set up a clip path if no fill is used so that the line stops at the (imaginary or drawn) textbox.

[Moved from old GMT wiki issues from 2013].