perf tools: Fix makefile generation under dash
perf tools: Fix makefile generation under dash

Under dash 'echo -n' yields '-n' to stdout.  Use printf "" instead.

Signed-off-by: Sergei Trofimovich <df7d2cee2e7ececeb2368216a0f9d0537fd32149@google.com>
Acked-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@kernel.org>
Acked-by: Jiri Olsa <2c6594f608aa3d41e98d48846a6328831f7084ad@kernel.org>
Cc: Adrian Hunter <41bb5944f244750b7cf0394140496972a3f1bee3@intel.com>
Cc: Namhyung Kim <5c915a589b3ddf58cebf14bec41bcc143b37ac3c@kernel.org>
Cc: Peter Zijlstra <645ca7d3a8d3d4f60557176cd361ea8351edc32b@chello.nl>
Link: http://lkml.kernel.org/r/1437298205-29305-1-git-send-email-df7d2cee2e7ececeb2368216a0f9d0537fd32149@google.com
Signed-off-by: Arnaldo Carvalho de Melo <293abb6b76d7791c0732cc517d38c4b5c734b87f@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs