[Qt-creator] Prevent creator from cleaning up line endings

[Nikos Chantziaras]

When editing a file that has mixed line endings (some lines are LF, some 
are CR LF) and saving it, creator will go and change all the lines in 
the file to LF. The result is that when doing a git commit, you get 
hundreds or thousands of changes instead of only the few couple lines 
you actually edited.

Is there a way to fix that?