original by Napster ( https://rathena.org/board/topic/97889- )
equivalent ExtendedVendingSystem_1.9.4_r15149.diff
very recommend use clean server for this patch.
back up your server first before patch and use as your own risk.
Step 1: download patch.diff and place to rAthena working directory.
Step 2: in Git Bash, browse to rathena directory (cd command) and execute this command.
patch -p1 -l < patch.diff
or
git apply patch.diff
result should be.
Step 3: migrate data