Remove excessive horizontal whitespace from hier(7) by correctly

using "-width". The http://mdocml.bsd.lv/mdoc/details/width.html
says: "Do not use macros in the argument specifying the width,
that's not portable. While GNU troff can handle it, mandoc cannot."
The same problem seems to exist in many other man pages.

Reviewed by:	bapt, vangyzen
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D10238

share/man/man7/hier.7

@@ -36,7 +36,7 @@
 .Nd layout of file systems
 .Sh DESCRIPTION
 A sketch of the file system hierarchy.
-.Bl -tag -width ".Pa /libexec/"
+.Bl -tag -width "/libexec/"
 .It Pa /
 root directory of the file system
 .It Pa /bin/
@@ -44,7 +44,7 @@ user utilities fundamental to both single-user and multi-user environments
 .It Pa /boot/
 programs and configuration files used during operating system bootstrap
 .Pp
-.Bl -tag -width ".Pa defaults/" -compact
+.Bl -tag -width "defaults/" -compact
 .It Pa defaults/
 default bootstrapping configuration files; see
 .Xr loader.conf 5
@@ -80,7 +80,7 @@ comments apply
 device special files managed by
 .Xr devfs 5
 .Pp
-.Bl -tag -width ".Pa net/" -compact
+.Bl -tag -width "net/" -compact
 .It Pa fd/
 file descriptor files;
 see
@@ -91,7 +91,7 @@ network devices
 .It Pa /etc/
 system configuration files and scripts
 .Pp
-.Bl -tag -width ".Pa bluetooth/" -compact
+.Bl -tag -width "bluetooth/" -compact
 .It Pa defaults/
 default system configuration files;
 see
@@ -141,7 +141,7 @@ critical system libraries needed for binaries in
 and
 .Pa /sbin
 .Pp
-.Bl -tag -width ".Pa geom/" -compact
+.Bl -tag -width "geom/" -compact
 .It Pa geom/
 class-specific libraries for the
 .Xr geom 8
@@ -181,7 +181,7 @@ temporary files that are not guaranteed to persist across system reboots
 .It Pa /usr/
 contains the majority of user utilities and applications
 .Pp
-.Bl -tag -width ".Pa libdata/" -compact
+.Bl -tag -width "libdata/" -compact
 .It Pa bin/
 common utilities, programming tools, and applications
 .It Pa compat/
@@ -190,7 +190,7 @@ such as Linux
 .It Pa include/
 standard C include files
 .Pp
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa altq/
 C include files for alternate queueing
 .It Pa arpa/
@@ -201,7 +201,7 @@ C include files for the SNMP daemon
 C++ include files
 .It Pa cam/
 C include files for the Common Access Methods Layer
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa scsi/
 The SCSI device on top of CAM
 .El
@@ -209,7 +209,7 @@ The SCSI device on top of CAM
 C include files for programming various
 .Fx
 devices
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa ic/
 Various header files describing driver- and bus-independent
 hardware circuits
@@ -235,7 +235,7 @@ The
 WaveLAN driver
 .El
 .It Pa fs/
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa cd9660/
 iso9660 file system
 .It Pa fdescfs/
@@ -260,7 +260,7 @@ union file system
 .El
 .It Pa geom/
 GEOM framework
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa concat/
 CONCAT GEOM class
 .It Pa gate/
@@ -306,7 +306,7 @@ see
 NATM include files;
 see
 .Xr natm 4
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa api/
 include files for the signalling API
 .It Pa msg/
@@ -349,7 +349,7 @@ system C include files (kernel data structures)
 .\" Tcl language;
 .\" see
 .\" .Xr Tcl n
-.\" .Bl -tag -width ".Pa kerberos5/" -compact
+.\" .Bl -tag -width "kerberos5/" -compact
 .\" .It Pa generic/
 .\" ???
 .\" .It Pa unix/
@@ -357,7 +357,7 @@ system C include files (kernel data structures)
 .\" .El
 .It Pa ufs/
 C include files for UFS (The U-word File System)
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa ffs/
 Fast file system
 .It Pa ufs/
@@ -472,7 +472,7 @@ system daemons & system utilities (executed by users)
 .It Pa share/
 architecture-independent files
 .Pp
-.Bl -tag -width ".Pa calendar/" -compact
+.Bl -tag -width "calendar/" -compact
 .It Pa calendar/
 a variety of pre-fab calendar files;
 see
@@ -553,7 +553,7 @@ ASCII text files used by various games
 device description file for device name
 .It Pa keys/
 known trusted and revoked keys.
-.Bl -tag -width ".Pa keys/pkg/" -compact
+.Bl -tag -width "keys/pkg/" -compact
 .It Pa keys/pkg/
 fingerprints for
 .Xr pkg 7
@@ -614,7 +614,7 @@ MIB files
 files used by syscons;
 see
 .Xr syscons 4
-.Bl -tag -width ".Pa scrnmaps/" -compact
+.Bl -tag -width "scrnmaps/" -compact
 .It Pa fonts/
 console fonts;
 see
@@ -648,7 +648,7 @@ localization support and utilities for
 files used by vt;
 see
 .Xr vt 4
-.Bl -tag -width ".Pa scrnmaps/" -compact
+.Bl -tag -width "scrnmaps/" -compact
 .It Pa fonts/
 console fonts;
 see
@@ -673,7 +673,7 @@ see
 .Bx ,
 third-party, and/or local source files
 .Pp
-.Bl -tag -width ".Pa kerberos5/" -compact
+.Bl -tag -width "kerberos5/" -compact
 .It Pa bin/
 source code for files in /bin
 .It Pa cddl/
@@ -743,7 +743,7 @@ for more details.
 .It Pa /var/
 multi-purpose log, temporary, transient, and spool files
 .Pp
-.Bl -tag -width ".Pa preserve/" -compact
+.Bl -tag -width "preserve/" -compact
 .It Pa account/
 system accounting files
 .Pp
@@ -758,7 +758,7 @@ see
 timed command scheduling files;
 see
 .Xr \&at 1
-.Bl -tag -width ".Pa preserve/" -compact
+.Bl -tag -width "preserve/" -compact
 .It Pa jobs/
 directory containing job files
 .It Pa spool/
@@ -769,7 +769,7 @@ directory containing output spool files
 miscellaneous backup files
 .It Pa cache/
 miscellaneous cached files
-.Bl -tag -width ".Pa pkg/" -compact
+.Bl -tag -width "pkg/" -compact
 .It Pa pkg/
 cached packages for
 .Xr pkg 8
@@ -784,7 +784,7 @@ and
 files used by cron;
 see
 .Xr cron 8
-.Bl -tag -width ".Pa preserve/" -compact
+.Bl -tag -width "preserve/" -compact
 .It Pa tabs/
 crontab files;
 see