shell script always with LF EOL encoding checked-out

[akaeba]

In case of Windows GIT checkout is the shell script with CR messed up. As described in https://github.com/wkz/mdio-tools/pull/6 done with own commit.

[wkz]

A few observations:

• We have one shell-script (autogen.sh) in the entire repo
• ...which consists of a single line
• ...which is unlikely to ever change
• Very few users will be on a system with CRLF line-endings
• You can configure most editors to do this

Sorry, I just don't see value here.