rxvt-unicode 9.31 prompt is in the wrong place

The update of rxvt-unicode to version 9.31 brought a bug that causes the

prompt in new terminal instances to be placed in the middle of the

window and not at the top.

Reported upstream:

Also reported at Arch with a patch to fix it:

Fixed with commit 8b8607a9452b7690b15f7db2613abdc211d40cee