Cleanup in //runtime/bin

runtime/bin/stdio_macos.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_MACOS)
 
+#include "bin/stdio.h"
+
 #include <errno.h>  // NOLINT
 #include <sys/ioctl.h>  // NOLINT
 #include <termios.h>  // NOLINT
 
-#include "bin/stdio.h"
 #include "bin/fdutils.h"
-
 #include "platform/signal_blocker.h"
 
-
 namespace dart {
 namespace bin {
 
 int Stdin::ReadByte() {
   int c = getchar();
   if (c == EOF) {
     c = -1;
   }
   return c;
 }
 
 
 bool Stdin::GetEchoMode() {
   struct termios term;
   tcgetattr(STDIN_FILENO, &term);
-  return (term.c_lflag & ECHO) != 0;
+  return ((term.c_lflag & ECHO) != 0);
 }
 
 
 void Stdin::SetEchoMode(bool enabled) {
   struct termios term;
   tcgetattr(STDIN_FILENO, &term);
   if (enabled) {
-    term.c_lflag |= ECHO|ECHONL;
+    term.c_lflag |= (ECHO | ECHONL);
   } else {
-    term.c_lflag &= ~(ECHO|ECHONL);
+    term.c_lflag &= ~(ECHO | ECHONL);
   }
   tcsetattr(STDIN_FILENO, TCSANOW, &term);
 }
 
 
 bool Stdin::GetLineMode() {
   struct termios term;
   tcgetattr(STDIN_FILENO, &term);
-  return (term.c_lflag & ICANON) != 0;
+  return ((term.c_lflag & ICANON) != 0);
 }
 
 
 void Stdin::SetLineMode(bool enabled) {
   struct termios term;
   tcgetattr(STDIN_FILENO, &term);
   if (enabled) {
     term.c_lflag |= ICANON;
   } else {
     term.c_lflag &= ~(ICANON);
   }
   tcsetattr(STDIN_FILENO, TCSANOW, &term);
 }
 
 
 bool Stdout::GetTerminalSize(intptr_t fd, int size[2]) {
   struct winsize w;
-  if (NO_RETRY_EXPECTED(ioctl(fd, TIOCGWINSZ, &w) == 0) &&
-      (w.ws_col != 0 || w.ws_row != 0)) {
+  int status = NO_RETRY_EXPECTED(ioctl(fd, TIOCGWINSZ, &w));
+  if ((status == 0) && ((w.ws_col != 0) || (w.ws_row != 0))) {
     size[0] = w.ws_col;
     size[1] = w.ws_row;
     return true;
   }
   return false;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)