These two lines appear to be unnecessary.  They set variables which are not
used afterwards.  The primary motivation to remove them is that the sed
invocation exits non-zero for seds which require newline termination of
input files.
Signed-off-by: NBrandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>