Mechanically kill hard sentence breaks.

usr.bin/c89/c89.1

@@ -60,7 +60,8 @@ object files that are produced.
 .It Fl D Ar name Ns Op = Ns Ar value
 Define name as if by a C-language
 .Ic #define
-directive.  If
+directive.
+If
 no
 .Dq = Ns Ar value
 is given, a value of 1 will be used.
@@ -69,19 +70,22 @@ translation as specified by
 .St -p1003.2
 you need to define
 .Dv _POSIX_SOURCE
-either in the source or using this option.  The
+either in the source or using this option.
+The
 .Fl D
 option has lower precedence than the
 .Fl U
-option.  That is, if
+option.
+That is, if
 .Ar name
 is used in both a
 .Fl U
 and a
 .Fl D
 option,
 .Ar name
-will be undefined regardless of the order of the options.  The
+will be undefined regardless of the order of the options.
+The
 .Fl D
 option may be specified more than once.
 .It Fl E
@@ -93,30 +97,36 @@ Produce symbolic information in the object or executable files.
 Change the algorithm for searching for headers whose names are not
 absolute pathnames to look in the directory named by the
 .Ar directory
-pathname before looking in the usual places.  Thus, headers whose
+pathname before looking in the usual places.
+Thus, headers whose
 names are enclosed in double-quotes ("") will be searched for first
 in the directory of the file with the
 .Ic #include
 line, then in
 directories named in
 .Fl I
-options, and last in the usual places.  For
+options, and last in the usual places.
+For
 headers whose names are enclosed in angle brackets (<>), the header
 will be searched for only in directories named in
 .Fl I
-options and then in the usual places.  Directories named in
+options and then in the usual places.
+Directories named in
 .Fl I
-options shall be searched in the order specified.  The
+options shall be searched in the order specified.
+The
 .Fl I
 option may be specified more than once.
 .It Fl L Ar directory
 Change the algorithm of searching for the libraries named in the
 .Fl l
 objects to look in the directory named by the
 .Ar directory
-pathname before looking in the usual places.  Directories named in
+pathname before looking in the usual places.
+Directories named in
 .Fl L
-options will be searched in the order specified.  The
+options will be searched in the order specified.
+The
 .Fl L
 option may be specified more than once.
 .It Fl o Ar outfile
@@ -141,11 +151,14 @@ option may be specified more than once.
 .Pp
 An operand is either in the form of a pathname or the form
 .Fl l
-library.  At least one operand of the pathname form needs to be
-specified.  Supported operands are of the form:
+library.
+At least one operand of the pathname form needs to be
+specified.
+Supported operands are of the form:
 .Bl -tag -offset indent -width "-l library"
 .It Ar file Ns Pa .c
-A C-language source file to be compiled and optionally linked.  The
+A C-language source file to be compiled and optionally linked.
+The
 operand must be of this form if the
 .Fl c
 option is used.

usr.bin/calendar/calendar.1

@@ -128,7 +128,7 @@ or negative integer.
 ``Paskha'', is Orthodox Easter for this year, and may be followed by a
 positive or negative integer.
 .Pp
-Weekdays may be followed by ``-4'' ... ``+5'' (aliases for
+Weekdays may be followed by ``-4'' ...\& ``+5'' (aliases for
 last, first, second, third, fourth) for moving events like
 ``the last Monday in April''.
 .Pp
@@ -217,7 +217,7 @@ Calendar of events in France.
 .It Pa calendar.german
 Calendar of events in Germany.
 .It Pa calendar.history
-Everything  else, mostly U.S. historical events.
+Everything  else, mostly U.S.\& historical events.
 .It Pa calendar.holiday
 Other  holidays, including the not-well-known, obscure, and
 .Em really
@@ -236,7 +236,7 @@ Russian calendar.
 .It Pa calendar.southafrica
 Calendar of events in South Africa.
 .It Pa calendar.usholiday
-U.S. holidays.
+U.S.\& holidays.
 This calendar should be updated yearly by the local system administrator
 so that roving holidays are set correctly for the current year.
 .It Pa calendar.world

usr.bin/checknr/checknr.1

@@ -90,11 +90,11 @@ size changes.
 Delimiters checked are:
 .Bl -enum
 .It
-Font changes using \efx ... \efP.
+Font changes using \efx ...\& \efP.
 .It
-Size changes using \esx ... \es0.
+Size changes using \esx ...\& \es0.
 .It
-Macros that come in open ... close forms, for example,
+Macros that come in open ...\& close forms, for example,
 the .TS and .TE macros which must always come in pairs.
 .El
 .Pp

usr.bin/chpass/chpass.1

@@ -163,7 +163,8 @@ Both of these fields should be unique across the system (and often
 across a group of systems) as they control file access.
 .Pp
 While it is possible to have multiple entries with identical login names
-and/or identical user id's, it is usually a mistake to do so.  Routines
+and/or identical user id's, it is usually a mistake to do so.
+Routines
 that manipulate these files will often return only one of the multiple
 entries, and that one by random selection.
 .Pp
@@ -447,7 +448,8 @@ When invoked by the super-user on the NIS master server,
 allows unrestricted changes to the NIS passwd maps using dedicated,
 non-RPC-based mechanism (in this case, a
 .Ux
-domain socket). The
+domain socket).
+The
 .Fl o
 flag can be used to force
 .Nm

usr.bin/compress/compress.1

@@ -128,7 +128,8 @@ If it is increasing,
 continues to use the existing code dictionary.
 However, if the compression ratio decreases,
 .Nm
-discards the table of substrings and rebuilds it from scratch.  This allows
+discards the table of substrings and rebuilds it from scratch.
+This allows
 the algorithm to adapt to the next "block" of the file.
 .Pp
 The

usr.bin/du/du.1

@@ -72,11 +72,13 @@ This is the default.
 .It Fl a
 Display an entry for each file in a file hierarchy.
 .It Fl h
-"Human-readable" output.  Use unit suffixes: Byte, Kilobyte, Megabyte,
+"Human-readable" output.
+Use unit suffixes: Byte, Kilobyte, Megabyte,
 Gigabyte, Terabyte and Petabyte
 .It Fl r
 Generate messages about directories that cannot be read, files
-that cannot be opened, and so on.  This is the default case.
+that cannot be opened, and so on.
+This is the default case.
 This option exists solely for conformance with
 .St -xpg4 .
 .It Fl s