man: Remove unneeded u-a references from options descriptions

debian/changelog

@@ -137,6 +137,7 @@ dpkg (1.18.0) UNRELEASED; urgency=low
     - Use .TQ to separate different but related options in dpkg(1).
     - Clarify that dpkg-buildpackage -jN forces parallel builds, regardless of
       the packaging or upstream build systems supporting them. Closes: #780866
+    - Remove unneeded update-alternatives references from options descriptions.
   * 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/update-alternatives.1

@@ -318,7 +318,7 @@ might contain spaces).
 .TP
 \fB\-\-set\-selections\fR
 Read configuration of alternatives on standard input in the format
-generated by \fBupdate\-alternatives \-\-get\-selections\fR and reconfigure
+generated by \-\-get\-selections\fR and reconfigure
 them accordingly (since version 1.15.0).
 .TP
 \fB\-\-query\fR \fIname\fR
@@ -354,7 +354,7 @@ Specifies the log file (since version 1.15.0), when this is to be different
 from the default (/var/log/alternatives.log).
 .TP
 .BI \-\-force
-Let \fBupdate\-alternatives\fR replace or drop any real file that is installed
+Allows to replace or drop any real file that is installed
 where an alternative link has to be installed or removed.
 .TP
 .BI \-\-skip\-auto
@@ -363,9 +363,7 @@ in automatic mode. This option is only relevant with \fB\-\-config\fR or
 \fB\-\-all\fR.
 .TP
 .B \-\-verbose
-Generate more comments about what
-.B update\-alternatives
-is doing.
+Generate more comments about what is being done.
 .TP
 .B \-\-quiet
 Don't generate any comments unless errors occur.
@@ -400,7 +398,7 @@ Can be overridden by the
 option.
 .
 .SH QUERY FORMAT
-The \fBupdate\-alternatives \-\-query\fP format is using an
+The \fB\-\-query\fP format is using an
 RFC822-like flat format. It's made of \fIn\fP + 1 blocks where \fIn\fP is
 the number of alternatives available in the queried link group. The first
 block contains the following fields: