man: Use .TQ to separate different but related options in dpkg(1)

debian/changelog

@@ -128,6 +128,7 @@ dpkg (1.18.0) UNRELEASED; urgency=low
     - Say archive instead of filename for dpkg-deb option in dpkg(1).
     - Say control-field-name instead of control-file-field in dpkg-deb(1).
     - Fix option values and pathname markup in dpkg-deb(1).
+    - Use .TQ to separate different but related options in dpkg(1).
   * Output message fixes and improvements:
     - Remove trailing newline from string literal in warning calls.
     - Say “execute” instead of “exec” in Dpkg::Changelog::Parse error message.

man/dpkg.1

@@ -244,7 +244,9 @@ option, which by default uses the \fBrpm\fP format, but that might
 change in the future, and as such, programs parsing this command
 output should be explicit about the format they expect.
 .TP
-\fB\-\-update\-avail\fP, \fB\-\-merge\-avail\fP [\fIPackages-file\fP]
+.BR \-\-update\-avail " [\fIPackages-file\fP]"
+.TQ
+.BR \-\-merge\-avail " [\fIPackages-file\fP]"
 Update \fBdpkg\fP's and \fBdselect\fP's idea of which packages are
 available. With action \fB\-\-merge\-avail\fP, old information is
 combined with information from \fIPackages-file\fP. With action
@@ -443,8 +445,9 @@ debugging values.
       1000   Lots of drivel about e.g. the dpkg/info dir
       2000   Insane amounts of drivel
 .TP
-\fB\-\-force\-\fP\fIthings\fP, \fB\-\-no\-force\-\fP\fIthings\fP, \fB\-\-refuse\-\fP\fIthings\fP
-
+.B \-\-force\-\fIthings\fP
+.TQ
+.BR \-\-no\-force\-\fIthings\fP ", " \-\-refuse\-\fIthings\fP
 Force or refuse (\fBno\-force\fP and \fBrefuse\fP mean the same thing)
 to do some things. \fIthings\fP is a comma separated list of things
 specified below. \fB\-\-force\-help\fP displays a message describing them.