perf tools: Fix diverse comment typos

Go over the tools/ files that are maintained in Arnaldo's tree and
fix common typos: half of them were in comments, the other half
in JSON files.

No change in functionality intended.

Committer notes:

This was split from a larger patch as there are code that is,
additionally, maintained outside the kernel tree, so to ease
cherry-picking and/or backporting, split this into multiple patches.

Just typos in comments, no need to backport, reducing the possibility of
possible backporting artifacts.

Signed-off-by: Ingo Molnar <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/arch/x86/tests/insn-x86.c

···
  *
  * If the test passes %0 is returned, otherwise %-1 is returned.  Use the
  * verbose (-v) option to see all the instructions and whether or not they
- * decoded successfuly.
+ * decoded successfully.
  */
 int test__insn_x86(struct test *test __maybe_unused, int subtest __maybe_unused)
 {

tools/perf/builtin-top.c

···
 
 	/*
 	 * Initialize the uid_filter_str, in the future the TUI will allow
-	 * Zooming in/out UIDs. For now juse use whatever the user passed
+	 * Zooming in/out UIDs. For now just use whatever the user passed
 	 * via --uid.
 	 */
 	evlist__for_each_entry(top->evlist, pos) {

tools/perf/builtin-trace.c

···
 	 * Now that we already used evsel->attr to ask the kernel to setup the
 	 * events, lets reuse evsel->attr.sample_max_stack as the limit in
 	 * trace__resolve_callchain(), allowing per-event max-stack settings
-	 * to override an explicitely set --max-stack global setting.
+	 * to override an explicitly set --max-stack global setting.
 	 */
 	evlist__for_each_entry(evlist, evsel) {
 		if (evsel__has_callchain(evsel) &&

tools/perf/tests/attr.c

···
 	char path_perf[PATH_MAX];
 	char path_dir[PATH_MAX];
 
-	/* First try developement tree tests. */
+	/* First try development tree tests. */
 	if (!lstat("./tests", &st))
 		return run_dir("./tests", "./perf");
 

tools/perf/util/annotate.c

···
 	while (!feof(file)) {
 		/*
 		 * The source code line number (lineno) needs to be kept in
-		 * accross calls to symbol__parse_objdump_line(), so that it
+		 * across calls to symbol__parse_objdump_line(), so that it
 		 * can associate it with the instructions till the next one.
 		 * See disasm_line__new() and struct disasm_line::line_nr.
 		 */

tools/perf/util/header.c

···
 	lseek(fd, sec_start, SEEK_SET);
 	/*
 	 * may write more than needed due to dropped feature, but
-	 * this is okay, reader will skip the mising entries
+	 * this is okay, reader will skip the missing entries
 	 */
 	err = do_write(&ff, feat_sec, sec_size);
 	if (err < 0)

tools/perf/util/hist.c

···
 
 /*
  * If this is not the last column, then we need to pad it according to the
- * pre-calculated max lenght for this column, otherwise don't bother adding
+ * pre-calculated max length for this column, otherwise don't bother adding
  * spaces because that would break viewing this with, for instance, 'less',
  * that would show tons of trailing spaces when a long C++ demangled method
  * names is sampled.

tools/perf/util/jitdump.c

···
 	uint64_t	 sample_type;
 	size_t           bufsize;
 	FILE             *in;
-	bool		 needs_bswap; /* handles cross-endianess */
+	bool		 needs_bswap; /* handles cross-endianness */
 	bool		 use_arch_timestamp;
 	void		 *debug_data;
 	void		 *unwinding_data;

tools/perf/util/machine.c

···
 	struct machine *machine = machine__new_host();
 	/*
 	 * FIXME:
-	 * 1) We should switch to machine__load_kallsyms(), i.e. not explicitely
+	 * 1) We should switch to machine__load_kallsyms(), i.e. not explicitly
 	 *    ask for not using the kcore parsing code, once this one is fixed
 	 *    to create a map per module.
 	 */

tools/perf/util/probe-event.c

···
 		return ret;
 
 	for (i = 0; i < ntevs && ret >= 0; i++) {
-		/* point.address is the addres of point.symbol + point.offset */
+		/* point.address is the address of point.symbol + point.offset */
 		tevs[i].point.address -= stext;
 		tevs[i].point.module = strdup(exec);
 		if (!tevs[i].point.module) {
···
 	/*
 	 * Give it a '0x' leading symbol name.
 	 * In __add_probe_trace_events, a NULL symbol is interpreted as
-	 * invalud.
+	 * invalid.
 	 */
 	if (asprintf(&tp->symbol, "0x%lx", tp->address) < 0)
 		goto errout;

tools/perf/util/sort.c

···
  * -t, --field-separator
  *
  * option, that uses a special separator character and don't pad with spaces,
- * replacing all occurances of this separator in symbol names (and other
+ * replacing all occurrences of this separator in symbol names (and other
  * output) with a '.' character, that thus it's the only non valid separator.
 */
 static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)