From Fedora Project Wiki
Proposal to explicitly allow dos2unix
In guidelines in common errors section https://fedoraproject.org/wiki/Packaging/Guidelines#Rpmlint_Errors there is the following phrase:
This error occurs because of DOS line breaks in a file. Fix it with sed in the %prep section: %{__sed} -i 's/\r//' src/somefile -- DONT use dos2unix, that can cause build fail on FC3.
Because FC3 is not supported for long time, I'm proposing to change it to:
This error occurs because of DOS line breaks in a file. Fix it with in the %prep section with sed : %{__sed} -i 's/\r//' src/somefile or dos2unix.