perf bench: Clean up bench/bench.h

Clean up initializers in bench.h:

  - No need to break the line for function prototypes, they are more
    readable in a single line. (even if checkpatch complains about it

  - We try to align definitions / structure fields vertically,
    to make it  all a bit more readable.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1257853855-28934-2-git-send-email-mitake@dcl.info.waseda.ac.jp>

tools/perf/bench/bench.h

 #ifndef BENCH_H
 #define BENCH_H
 
-extern int bench_sched_messaging(int argc, const char **argv,
-				 const char *prefix);
-extern int bench_sched_pipe(int argc, const char **argv,
-			    const char *prefix);
+extern int bench_sched_messaging(int argc, const char **argv, const char *prefix);
+extern int bench_sched_pipe(int argc, const char **argv, const char *prefix);
 
 #define BENCH_FORMAT_DEFAULT_STR	"default"
 #define BENCH_FORMAT_DEFAULT		0