Bugfix to lineinfile to properly handle files with no newline at EOF when using insertafter=EOF.
Looks like #6881 is also affected by this bug.

Currently when using lineinfile insertafter=EOF for a file that has no newline then the added line is not prefixed with a newline.
As a concrete example, ubuntu distro default /etc/ssh/sshd_config has no newline so lineinfile module cannot be used to add a new line to the end of the file.
Merge branch 'fix-lineinfile-eof-newline' of https://github.com/ahtik/ansible into ahtik-fix-lineinfile-eof-newline
Merge branch 'ahtik-fix-lineinfile-eof-newline' into devel