Cannot set different arrow sizes using quiver

This seems to be a regression in the behaviour of the quiver function

According tothis SO post,quiver used to accept alinewidths array argument to set the arrow sizes; however, this is no longer true with 2.02 on Py2/3K.
Thelinewidth item pops 5 times inquiver.py though.

Code for reproduction
From theSO post, but the code (reported as working) does not work on my install.

importmatplotlib.pyplotaspltimportnumpyasnpsin=np.sincos=np.cos# http://stackoverflow.com/questions/6370742/#6372413xmax=4.0xmin=-xmaxD=20ymax=4.0ymin=-ymaxx=np.linspace(xmin,xmax,D)y=np.linspace(ymin,ymax,D)X,Y=np.meshgrid(x,y)# plots the vector field for Y'=Y**3-3*Y-Xdeg=np.arctan(Y**3-3*Y-X)widths=np.linspace(0,2,X.size)plt.quiver(X,Y,cos(deg),sin(deg),linewidths=widths)plt.show()

Actual outcome

Output is the same as that of the initialSO post where thelinewidths keyword is not set.

Matplotlib version

• Operating System: Manjaro
• Matplotlib Version: 2.02
• Python Version: 2.7.13 & 3.6.1
• Jupyter Version (if applicable): /
• Other Libraries: numpy 1.12.1