perf annotate: Do not truncate instruction names at 6 chars

There are many instructions, esp on PowerPC, whose mnemonics are longer
than 6 characters. Using precision limit causes truncation of such
mnemonics.

Fix this by removing precision limit. Note that, 'width' is still 6, so
alignment won't get affected for length <= 6.

Before:

li r11,-1
xscvdp vs1,vs1
add. r10,r10,r11

After:

li r11,-1
xscvdpsxds vs1,vs1
add. r10,r10,r11

Reported-by: Donald Stence <[e-mail]>
Signed-off-by: Ravi Bangoria <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Taeung Song <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/util/annotate.c

···
 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
 			      struct ins_operands *ops)
 {
-	return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
+	return scnprintf(bf, size, "%-6s %s", ins->name, ops->raw);
 }
 
 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
···
 			   struct ins_operands *ops)
 {
 	if (ops->target.name)
-		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
+		return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.name);
 
 	if (ops->target.addr == 0)
 		return ins__raw_scnprintf(ins, bf, size, ops);
 
-	return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
+	return scnprintf(bf, size, "%-6s *%" PRIx64, ins->name, ops->target.addr);
 }
 
 static struct ins_ops call_ops = {
···
 			c++;
 	}
 
-	return scnprintf(bf, size, "%-6.6s %.*s%" PRIx64,
+	return scnprintf(bf, size, "%-6s %.*s%" PRIx64,
 			 ins->name, c ? c - ops->raw : 0, ops->raw,
 			 ops->target.offset);
 }
···
 	if (ops->locked.ins.ops == NULL)
 		return ins__raw_scnprintf(ins, bf, size, ops);
 
-	printed = scnprintf(bf, size, "%-6.6s ", ins->name);
+	printed = scnprintf(bf, size, "%-6s ", ins->name);
 	return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
 					size - printed, ops->locked.ops);
 }
···
 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 			   struct ins_operands *ops)
 {
-	return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
+	return scnprintf(bf, size, "%-6s %s,%s", ins->name,
 			 ops->source.name ?: ops->source.raw,
 			 ops->target.name ?: ops->target.raw);
 }
···
 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 			   struct ins_operands *ops)
 {
-	return scnprintf(bf, size, "%-6.6s %s", ins->name,
+	return scnprintf(bf, size, "%-6s %s", ins->name,
 			 ops->target.name ?: ops->target.raw);
 }
 
···
 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 			  struct ins_operands *ops __maybe_unused)
 {
-	return scnprintf(bf, size, "%-6.6s", "nop");
+	return scnprintf(bf, size, "%-6s", "nop");
 }
 
 static struct ins_ops nop_ops = {
···
 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
 {
 	if (raw || !dl->ins.ops)
-		return scnprintf(bf, size, "%-6.6s %s", dl->ins.name, dl->ops.raw);
+		return scnprintf(bf, size, "%-6s %s", dl->ins.name, dl->ops.raw);
 
 	return ins__scnprintf(&dl->ins, bf, size, &dl->ops);
 }