perf report: Rename to --show-cpu-utilization

So that it can be more consistent with other --show-* options.  The old
name (--showcpuutilization) is provided only for compatibility.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445701767-12731-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Documentation/perf-report.txt

@@ -29,7 +29,7 @@ OPTIONS
 --show-nr-samples::
 	Show the number of samples for each symbol
 
---showcpuutilization::
+--show-cpu-utilization::
         Show sample percentage for different cpu modes.
 
 -T::

tools/perf/builtin-report.c

@@ -699,8 +699,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		   " Please refer the man page for the complete list."),
 	OPT_STRING('F', "fields", &field_order, "key[,keys...]",
 		   "output field(s): overhead, period, sample plus all of sort keys"),
-	OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
+	OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
 		    "Show sample percentage for different cpu modes"),
+	OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
+		    "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
 	OPT_STRING('p', "parent", &parent_pattern, "regex",
 		   "regex filter to identify parent, see: '--sort parent'"),
 	OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,

tools/perf/util/parse-options.h

@@ -111,6 +111,7 @@ struct option {
 #define OPT_GROUP(h)                { .type = OPTION_GROUP, .help = (h) }
 #define OPT_BIT(s, l, v, h, b)      { .type = OPTION_BIT, .short_name = (s), .long_name = (l), .value = check_vtype(v, int *), .help = (h), .defval = (b) }
 #define OPT_BOOLEAN(s, l, v, h)     { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = check_vtype(v, bool *), .help = (h) }
+#define OPT_BOOLEAN_FLAG(s, l, v, h, f)     { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = check_vtype(v, bool *), .help = (h), .flags = (f) }
 #define OPT_BOOLEAN_SET(s, l, v, os, h) \
 	{ .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), \
 	.value = check_vtype(v, bool *), .help = (h), \