os: TestStartProcess should be case insensitive on Windows

[matrixik]

What steps will reproduce the problem?
1. Checkout the latest head version
2. Build Go

What is the expected output?
All tests complete successfully

What do you see instead?
--- FAIL: TestStartProcess (0.27 seconds)
os_test.go:542:         exec "cmd.exe cmd.exe /c cd" returned
"C:\\Windows\\System32\r\n"
wanted "C:\\Windows\\system32\r\n"
FAIL
FAIL    os      0.638s

Which compiler are you using (5g, 6g, 8g, gccgo)?
8g

Which operating system are you using?
Windows 7 x32

Which version are you using?  (run 'go version')
go version devel +1b4a28e7f042 Fri Jan 11 15:11:08 2013 -0800 windows/386

Best regards,
Dobrosław Żybort

[minux]

Comment 1:

https://golang.org/cl/7085048

Labels changed: added priority-soon, removed priority-triage.

Owner changed to @minux.

Status changed to Started.

[minux]

Comment 2:

This issue was closed by revision 40b3758.

Status changed to Fixed.

[matrixik]

Comment 3:

Working.
Thank you.