perf bench: Run benchmarks, don't test them

perf bench: Run benchmarks, don't test them

So right now we output this text:

        memcpy: Benchmark for memcpy() functions
        memset: Benchmark for memset() functions
           all: Test all memory access benchmarks

But the right verb to use with benchmarks is to 'run' them, not 'test'
them.

So change this (and all similar texts) to:

        memcpy: Benchmark for memcpy() functions
        memset: Benchmark for memset() functions
           all: Run all memory access benchmarks

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1445241870-24854-15-git-send-email-mingo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>