Incorporate rmustacc's review feedback.

*** 8,25 ****
  # source.  A copy of the CDDL is also available via the Internet at
  # http://www.illumos.org/license/CDDL.
  #
  
  #
! # Copyright 2014 Garrett D'Amore <garrett@damore.org>
  # Copyright (c) 2012 by Delphix. All rights reserved.
  #
  
  include $(SRC)/Makefile.master
  
  CFGS = README \
          compilation.cfg \
          symbols/ctype_h.cfg \
          symbols/dirent_h.cfg \
          symbols/fcntl_h.cfg \
          symbols/locale_h.cfg \
          symbols/math_h.cfg \
--- 8,26 ----
  # source.  A copy of the CDDL is also available via the Internet at
  # http://www.illumos.org/license/CDDL.
  #
  
  #
! # Copyright 2015 Garrett D'Amore <garrett@damore.org>
  # Copyright (c) 2012 by Delphix. All rights reserved.
  #
  
  include $(SRC)/Makefile.master
  
  CFGS = README \
          compilation.cfg \
+         symbols/README \
          symbols/ctype_h.cfg \
          symbols/dirent_h.cfg \
          symbols/fcntl_h.cfg \
          symbols/locale_h.cfg \
          symbols/math_h.cfg \