another attempt to fix nonrectangular

For hairlines extended by the end cap,
set the first point to the first curve
following a move, which has had its
position adjusted.

R=fmalita@chromium.org
BUG=617658
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2371143002

Review-Url: https://codereview.chromium.org/2371143002
1 file changed