Use more portable printf instead of echo -n

Mac OS X's /bin/sh does not support echo -n.  Instead use the much
more widely supported printf with a format string of just %s.

Change-Id: I77ac99e7fff7432e3eaf663284e8b2950239ff88
Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed