Use %~dpf0 to make sure path to the vimtutor.bat

[mattn]

If the current directory is not the same as vimtutor.bat, vimtutor.bat will not work.

additional

%0 does not mean full-path to the batch file.

[codecov]

Codecov Report

Merging #6966 (0344082) into master (7851c69) will increase coverage by 7.60%.
The diff coverage is n/a.

❗ Current head 0344082 differs from pull request most recent head c77ee1c. Consider uploading reports for the commit c77ee1c to get more accurate results

@@            Coverage Diff             @@
##           master    #6966      +/-   ##
==========================================
+ Coverage   80.95%   88.55%   +7.60%     
==========================================
  Files         161      148      -13     
  Lines      185498   161431   -24067     
  Branches    41929        0   -41929     
==========================================
- Hits       150174   142961    -7213     
+ Misses      22780    18470    -4310     
+ Partials    12544        0   -12544     

Flag	Coverage Δ
huge-clang-none	?
linux	?
mingw-x64-HUGE	?
mingw-x64-HUGE-gui	?
windows	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/libvterm/src/unicode.c	70.83% <0.00%> (-13.17%)	⬇️
src/gui.c	62.75% <0.00%> (-10.27%)	⬇️
src/fold.c	86.59% <0.00%> (-1.53%)	⬇️
src/job.c	89.81% <0.00%> (-0.36%)	⬇️
src/blob.c	91.83% <0.00%> (-0.09%)	⬇️
src/dosinst.c
src/uninstall.c
src/vim9instr.c
src/float.c
src/vim9expr.c
... and 157 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7851c69...c77ee1c. Read the comment docs.

[Houl]

%~dpf0 is long for %~f0 which already has the fully-qualified file name.

[mattn]

So this is already fixed.