jinja2: fix get_jinja2.sh to work for current version

This is preparation to have patches/ dir for
https://crbug.com/1194274#c9

Bug: 1194274
Change-Id: Ie05ce5f1c5d0f47f60e37bfbe9300d9b4d2534a0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2912250
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Kentaro Hara <haraken@chromium.org>
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Timothy Loh <timloh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#885904}
NOKEYCHECK=True
GitOrigin-RevId: ab3be29b61e16fc0f3a28ee999b4aac12cadea35
2 files changed