4176 tolower(3c) refers to nonexistent _tolower(3c)
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Josef Sipek <jeffpc@josefsipek.net>

*** 2,12 ****
  .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
  .\"  Copyright (c) 2002, Sun Microsystems, Inc.  All Rights Reserved
  .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
  .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
  .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
! .TH TOLOWER 3C "Jun 21, 2014"
  .SH NAME
  tolower, tolower_l \- transliterate upper-case characters to lower-case
  .SH SYNOPSIS
  .LP
  .nf
--- 2,12 ----
  .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
  .\"  Copyright (c) 2002, Sun Microsystems, Inc.  All Rights Reserved
  .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
  .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
  .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE.  If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
! .TH TOLOWER 3C "Oct 4, 2015"
  .SH NAME
  tolower, tolower_l \- transliterate upper-case characters to lower-case
  .SH SYNOPSIS
  .LP
  .nf
*** 19,29 ****
  \fBint\fR \fBtolower_l\fR(\fBint\fR \fIc\fR, \fBlocale_t\fR \fIloc\fR);
  .fi
  
  .SH DESCRIPTION
  .LP
! The \fBtolower()\fR function has as a domain a type \fBint\fR, the value of
  which is representable as an \fBunsigned char\fR or the value of \fBEOF\fR. If
  the argument has any other value, the argument is returned unchanged. If the
  argument of \fBtolower()\fR represents an upper-case letter, and there exists a
  corresponding lower-case letter (as defined by character type information in
  the locale category \fB\fR\fBLC_CTYPE\fR\fB), \fR the result is the
--- 19,29 ----
  \fBint\fR \fBtolower_l\fR(\fBint\fR \fIc\fR, \fBlocale_t\fR \fIloc\fR);
  .fi
  
  .SH DESCRIPTION
  .LP
! The \fBtolower()\fR function has as a domain of type \fBint\fR, the value of
  which is representable as an \fBunsigned char\fR or the value of \fBEOF\fR. If
  the argument has any other value, the argument is returned unchanged. If the
  argument of \fBtolower()\fR represents an upper-case letter, and there exists a
  corresponding lower-case letter (as defined by character type information in
  the locale category \fB\fR\fBLC_CTYPE\fR\fB), \fR the result is the
*** 31,40 ****
--- 31,45 ----
  unchanged.
  .LP
  The function \fBtolower_l()\fR behaves identically to \fBtolower()\fR, except
  instead of operating in the current locale, it operates in the locale
  specified by \fIloc\fR.
+ .LP
+ A macro form, \fB_tolower()\fR exists. It is defined for standards
+ conformance, particularly with legacy standards. It was deprecated in
+ POSIX 2008 (Issue 7), and its use is discouraged. The macro, on this
+ system, is just an alias for \fBtolower()\fR.
  .SH RETURN VALUES
  .LP
  On successful completion, \fBtolower()\fR returns the lower-case letter
  corresponding to the argument passed. Otherwise, it returns the argument
  unchanged.
*** 57,63 ****
  MT-Level        MT-Safe
  .TE
  
  .SH SEE ALSO
  .LP
! \fB_tolower\fR(3C), \fBnewlocale\fR(3C), \fBsetlocale\fR(3C),
  \fBuselocale\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)
--- 62,68 ----
  MT-Level        MT-Safe
  .TE
  
  .SH SEE ALSO
  .LP
! \fBnewlocale\fR(3C), \fBsetlocale\fR(3C),
  \fBuselocale\fR(3C), \fBattributes\fR(5), \fBstandards\fR(5)