Reduce usage of predefined strings in manpages.

Predefined strings are not very portable across troff implementations,
and they make the source much harder to read. Usually the intended
character can be written directly.

No output changes, except for two instances where the incorrect escape
was used in the first place.

tweaks + ok schwarze@

6 files changed, 36 insertions, 25 deletions

diff --git a/lib/libc/gen/scandir.3 b/lib/libc/gen/scandir.3
index c2714e6799a..ae26b417ddb 100644
--- a/lib/libc/gen/scandir.3
+++ b/lib/libc/gen/scandir.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: scandir.3,v 1.13 2013/06/05 03:39:22 tedu Exp $
+.\"	$OpenBSD: scandir.3,v 1.14 2015/02/28 21:51:57 bentley Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -27,7 +27,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: June 5 2013 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt SCANDIR 3
 .Os
 .Sh NAME
@@ -38,7 +38,12 @@
 .In sys/types.h
 .In dirent.h
 .Ft int
-.Fn scandir "const char *dirname" "struct dirent ***namelist" "int \*(lp*select\*(rp\*(lpconst struct dirent *\*(rp" "int \*(lp*compar\*(rp\*(lpconst struct dirent **, const struct dirent **\*(rp"
+.Fo scandir
+.Fa "const char *dirname"
+.Fa "struct dirent ***namelist"
+.Fa "int (*select)(const struct dirent *)"
+.Fa "int (*compar)(const struct dirent **, const struct dirent **)"
+.Fc
 .Ft int
 .Fn alphasort "const struct dirent **d1" "const struct dirent **d2"
 .Sh DESCRIPTION
diff --git a/lib/libc/regex/re_format.7 b/lib/libc/regex/re_format.7
index 0d8ce59a8b8..36f0942715f 100644
--- a/lib/libc/regex/re_format.7
+++ b/lib/libc/regex/re_format.7
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: re_format.7,v 1.20 2014/12/09 15:37:14 schwarze Exp $
+.\"	$OpenBSD: re_format.7,v 1.21 2015/02/28 21:51:57 bentley Exp $
 .\"
 .\" Copyright (c) 1997, Phillip F Knaack. All rights reserved.
 .\"
@@ -35,7 +35,7 @@
 .\"
 .\"	@(#)re_format.7	8.3 (Berkeley) 3/20/94
 .\"
-.Dd $Mdocdate: December 9 2014 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt RE_FORMAT 7
 .Os
 .Sh NAME
@@ -77,7 +77,7 @@ and then discusses differences between them and basic regular expressions.
 An ERE is one** or more non-empty**
 .Em branches ,
 separated by
-.Sq \*(Ba .
+.Sq | .
 It matches anything that matches one of the branches.
 .Pp
 A branch is one** or more
@@ -510,11 +510,11 @@ times.
 If the comma is also omitted, then it matches exactly
 .Ar n
 times.
-.It \*(Ba
+.It |
 Used to separate patterns.
 For example,
 the pattern
-.Sq cat\*(Badog
+.Sq cat|dog
 matches either
 .Sq cat
 or
@@ -524,7 +524,7 @@ or
 Basic regular expressions differ in several respects:
 .Bl -bullet -offset 3n
 .It
-.Sq \*(Ba ,
+.Sq | ,
 .Sq + ,
 and
 .Sq ?\&
diff --git a/lib/libc/stdio/printf.3 b/lib/libc/stdio/printf.3
index 10e4a2cd9db..76a260f78ea 100644
--- a/lib/libc/stdio/printf.3
+++ b/lib/libc/stdio/printf.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: printf.3,v 1.71 2015/01/13 14:02:30 schwarze Exp $
+.\"	$OpenBSD: printf.3,v 1.72 2015/02/28 21:51:57 bentley Exp $
 .\"
 .\" Copyright (c) 1990, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -33,7 +33,7 @@
 .\"
 .\"     @(#)printf.3	8.1 (Berkeley) 6/4/93
 .\"
-.Dd $Mdocdate: January 13 2015 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt PRINTF 3
 .Os
 .Sh NAME
@@ -451,7 +451,7 @@ The
 .Li double
 argument is rounded and converted in the style
 .Sm off
-.Pf [\-]d Cm \&. No ddd Cm e No \*(Pmdd
+.Pf [\-]d Cm \&. No ddd Cm e No \(+-dd
 .Sm on
 where there is one digit before the
 decimal-point character
@@ -542,7 +542,7 @@ The
 .Li double
 argument is rounded and converted to hexadecimal notation in the style
 .Sm off
-.Pf [\-]0xh Cm \&. No hhh Cm p No [\*(Pm]d
+.Pf [\-]0xh Cm \&. No hhh Cm p No [\(+-]d
 .Sm on
 where the number of digits after the hexadecimal-point character
 is equal to the precision specification.
diff --git a/lib/libc/stdio/tmpnam.3 b/lib/libc/stdio/tmpnam.3
index 29d151a683a..ab969a9a61f 100644
--- a/lib/libc/stdio/tmpnam.3
+++ b/lib/libc/stdio/tmpnam.3
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: tmpnam.3,v 1.20 2015/01/13 14:02:30 schwarze Exp $
+.\"	$OpenBSD: tmpnam.3,v 1.21 2015/02/28 21:51:57 bentley Exp $
 .\"
 .\" Copyright (c) 1988, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -31,7 +31,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: January 13 2015 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt TMPFILE 3
 .Os
 .Sh NAME
@@ -60,7 +60,7 @@ reference to it is closed.
 Since
 .Xr mkstemp 3
 creates the file with mode
-.Dv S_IRUSR \*(Ba S_IWUSR ,
+.Dv S_IRUSR | S_IWUSR ,
 after the unlink,
 .Xr fchown 2
 and
diff --git a/lib/libc/sys/getrusage.2 b/lib/libc/sys/getrusage.2
index 6eaa1b3363e..aeaf5c9d124 100644
--- a/lib/libc/sys/getrusage.2
+++ b/lib/libc/sys/getrusage.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: getrusage.2,v 1.16 2014/12/10 07:16:58 guenther Exp $
+.\"	$OpenBSD: getrusage.2,v 1.17 2015/02/28 21:51:57 bentley Exp $
 .\"
 .\" Copyright (c) 1985, 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"     @(#)getrusage.2	8.1 (Berkeley) 6/4/93
 .\"
-.Dd $Mdocdate: December 10 2014 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt GETRUSAGE 2
 .Os
 .Sh NAME
@@ -88,7 +88,9 @@ of the process(es).
 .It Fa ru_maxrss
 the maximum resident set size utilized (in kilobytes).
 .It Fa ru_ixrss
-an \*(lqintegral\*(rq value indicating the amount of memory used
+an
+.Dq integral
+value indicating the amount of memory used
 by the text segment
 that was also shared among other processes.
 This value is expressed in units of kilobytes * ticks-of-execution.
@@ -102,13 +104,16 @@ stack segment of a process (expressed in units of
 kilobytes * ticks-of-execution).
 .It Fa ru_minflt
 the number of page faults serviced without any I/O activity; here
-I/O activity is avoided by \*(lqreclaiming\*(rq a page frame from
+I/O activity is avoided by
+.Dq reclaiming
+a page frame from
 the list of pages awaiting reallocation.
 .It Fa ru_majflt
 the number of page faults serviced that required I/O activity.
 .It Fa ru_nswap
-the number of times a process was \*(lqswapped\*(rq out of main
-memory.
+the number of times a process was
+.Dq swapped
+out of main memory.
 .It Fa ru_inblock
 the number of times the file system had to perform input.
 .It Fa ru_oublock
diff --git a/lib/libc/sys/socket.2 b/lib/libc/sys/socket.2
index 10f48fe68a7..cb62cb4c5f6 100644
--- a/lib/libc/sys/socket.2
+++ b/lib/libc/sys/socket.2
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: socket.2,v 1.38 2014/08/31 01:42:36 guenther Exp $
+.\"	$OpenBSD: socket.2,v 1.39 2015/02/28 21:51:57 bentley Exp $
 .\"	$NetBSD: socket.2,v 1.5 1995/02/27 12:37:53 cgd Exp $
 .\"
 .\" Copyright (c) 1983, 1991, 1993
@@ -30,7 +30,7 @@
 .\"
 .\"     @(#)socket.2	8.1 (Berkeley) 6/4/93
 .\"
-.Dd $Mdocdate: August 31 2014 $
+.Dd $Mdocdate: February 28 2015 $
 .Dt SOCKET 2
 .Os
 .Sh NAME
@@ -114,7 +114,8 @@ Normally only a single protocol exists to support a particular
 socket type within a given protocol family.
 However, it is possible that many protocols may exist,
 in which case a particular protocol must be specified in this manner.
-The protocol number to use is particular to the \*(lqcommunication domain\*(rq
+The protocol number to use is particular to the
+.Dq communication domain
 in which communication is to take place; see
 .Xr protocols 5 .
 A value of 0 for