Fixed Windows codepage setting for utf8 beta.

[siad007]

Closes #1399

[codecov]

Codecov Report

Merging #1413 into master will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #1413      +/-   ##
============================================
- Coverage     53.01%   53.01%   -0.01%     
- Complexity     9303     9304       +1     
============================================
  Files           477      477              
  Lines         22683    22686       +3     
============================================
  Hits          12026    12026              
- Misses        10657    10660       +3     

Impacted Files	Coverage Δ	Complexity Δ
classes/phing/system/io/WindowsFileSystem.php	3.75% <0.00%> (-0.06%)	107.00 <0.00> (+1.00)	⬇️

---

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 58c92cb...4ebb091. Read the comment docs.