perf lock: Drop "-a" option from cmd_record() default arguments set

This patch drops "-a" from the default arguments passed to
perf record by perf lock.

If a user wants to do a system wide record of lock events,
        perf lock record -a <program> <argument> ...
is enough for this purpose.

This can reduce the size of the perf.data file.

% sudo ./perf lock record whoami
root
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.439 MB perf.data (~19170 samples) ]
% sudo ./perf lock record -a whoami   # with -a option
root
[ perf record: Woken up 0 times to write data ]
[ perf record: Captured and wrote 48.962 MB perf.data (~2139197 samples) ]

Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
LKML-Reference: Message-Id: <1273306229-5216-1-git-send-email-mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

tools/perf/builtin-lock.c

@@ -930,7 +930,6 @@ static const struct option lock_options[] = {
 
 static const char *record_args[] = {
 	"record",
-	"-a",
 	"-R",
 	"-f",
 	"-m", "1024",