Newline caractere replaced with space when update google doc file

[GoogleCodeExporter]

What steps will reproduce the problem?
1.create a google doc txt file on google drive
2.update it via api (GTLUploadParameters uploadParametersWithData)
3.all newline are replaced with space

What is the expected output? What do you see instead?
newline must appears well after doc being updated

What version of the product are you using? On what operating system?
google drive api r350, ios 6.1, xcode 4.6

Please provide any additional information below.
Update is done with NSData like @"Hi\nGoogle"
Tried with \n, \r, \r\n
Tried to set file convert YES or NO
The download part work well, newline on google doc appears well on IOS.

Original issue reported on code.google.com by [email protected] on 9 Aug 2013 at 11:28