perf/core improvements and fixes:

. Fix perf usage string leftover (Jiri Olsa)

. Revert "perf tools: Fix jump label always changing during tracing" (Jiri Olsa)

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=BMXE
-----END PGP SIGNATURE-----