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 but the problem could still be in EPEL4, 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: <code>%{__sed} -i 's/\r//' src/somefile</code>
or dos2unix. (Note that dos2unix may fail on EPEL4.)