Fixing a nit: "gcc" => "g++"

tools/ld_bfd/ld

 #!/usr/bin/python
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Wrapper for invoking the BFD loader
 
 A simple script to invoke the bfd loader instead of gold.
 This script is in a filename "ld" so it can be invoked from gcc
 via the -B flag.
 """
 # TODO(bradchen): Delete this script when Gold supports linker scripts properly.
 import os
 import subprocess
 import sys
 
 def PathTo(fname):
   if fname[0] == os.pathsep:
     return fname
   for p in os.environ["PATH"].split(os.pathsep):
     fpath = os.path.join(p, fname)
     if os.path.exists(fpath):
       return fpath
   return fname
 
 def FindLDBFD():
   cxx = os.getenv("CXX")
   if not cxx:
-    cxx = "gcc"
+    cxx = "g++"
   popen = subprocess.Popen(cxx + " -print-prog-name=ld",
                            shell=True,
                            stdout=subprocess.PIPE,
                            stdin=subprocess.PIPE)
   (ld, error) = popen.communicate()
   if popen.wait() != 0:
     print "Could not find ld:" + error
     return "ld"
   ld = ld.strip()
   ld_bfd = PathTo(ld + ".bfd")
   if os.access(ld_bfd, os.X_OK):
     return ld_bfd
   return ld
 
 def main():
   args = [FindLDBFD()] + sys.argv[1:]
   print("tools/ld_bfd/ld: exec " + ' '.join(args))
   sys.exit(subprocess.call(args))
 
 if __name__ == "__main__":
   main()