japanese/jvim3: fix patch

Patch was malformed due to incorrect copy-editing and no longer applied.

Fixes: 64631af5a788e3083ad88fb728a95a3499015a6d
Approved by: portmgr (build fix blanket)
MFH: 2025Q1

(cherry picked from commit f27598a6a985c4b6173a3a8f0529fa7a92354ecf)