[appveyor] auto ftp upload part 2

.ci/upload_win_installer.sh

@@ -6,6 +6,6 @@ tag=$(git describe --exact-match)
 [ "$tag" ] || exit
 curl -T 'packages\win_installer\output\Aegisub-Japan7-x64.exe' --user $FTP_USER:$FTP_PASS "$dest/Aegisub-Japan7-x64-${tag#v}.exe"
 
-printf "$tag\n$(git tag -l --format='%contents' $tag)" > latest
+printf "${tag#v}\n$(git tag -l --format='%contents' $tag)" > latest
 curl -T latest --user "$FTP_USER:$FTP_PASS" "$dest/"
 

appveyor.yml

@@ -76,9 +76,10 @@ after_build:
   - 7z x "C:\aegisub-codecs.zip"
   - cd packages\win_installer
   - iscc aegisub3.iss
+  - cd ..\..
 
 on_success:
-  - bash.exe .ci\upload_win_installer.sh
+  - bash.exe .ci\\upload_win_installer.sh
 
 artifacts:
   - path: packages\win_installer\output\Aegisub-Japan7-x64.exe