Follow up to r17656 with more documentation tweaks:
Follow up to r17656 with more documentation tweaks:

* subversion/libsvn_diff/diff_file.c
  (detect_eol): Document the actual behavior and the motivations for
  it, rather than documenting what we assume the caller's intention is.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@857734 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion