Tidy up formatting of manpage cross-references.

In most Halibut man pages I write, I have a standard convention of
referring to another man page by wrapping the page name in \cw and the
section number in \e, leaving the parentheses un-marked-up. Apparently
I forgot in this particular collection.

doc/man-pageant.but

@@ -41,7 +41,7 @@ extract their public half.
 
 The agent protocol used by \c{pageant} is compatible with the PuTTY
 tools and also with other implementations such as OpenSSH's SSH client
-and \e{ssh-agent(1)}. Some \c{pageant} features are implemented with
+and \cw{ssh-agent}(\e{1}). Some \c{pageant} features are implemented with
 protocol extensions, so will only work if \c{pageant} is on both ends.
 
 To run \c{pageant} as an agent, you must provide an option to tell it
@@ -317,15 +317,15 @@ by the SSH agent protocol.
 
 \dt \cw{--askpass} \e{prompt}
 
-\dd With this option, \c{pageant} acts as an \e{ssh-askpass(1)}
+\dd With this option, \c{pageant} acts as an \cw{ssh-askpass}(\e{1})
 replacement, rather than performing any SSH agent functionality. This
 may be useful if you prefer Pageant's GUI prompt style, which
 minimises information leakage about your passphrase length in its
-visual feedback, compared to other \e{ssh-askpass(1)} implementations.
+visual feedback, compared to other \cw{ssh-askpass}(\e{1}) implementations.
 
 \lcont{
 
-\c{pageant --askpass} implements the standard \e{ssh-askpass(1)}
+\c{pageant --askpass} implements the standard \cw{ssh-askpass}(\e{1})
 interface: it can be passed a prompt to display (as a single argument)
 and, if successful, prints the passphrase on standard output and
 returns a zero exit status. Typically you would use the environment

doc/man-plink.but

@@ -59,9 +59,9 @@ to aid in verifying new files released by the PuTTY team.
 \dt \cw{-ssh-connection}
 
 \dd Force use of the \q{bare \cw{ssh-connection}} protocol. This is
-only likely to be useful when connecting to a \e{psusan(1)} server,
-most likely with an absolute path to a Unix-domain socket in place
-of \e{host}.
+only likely to be useful when connecting to a \cw{psusan}(\e{1})
+server, most likely with an absolute path to a Unix-domain socket in
+place of \e{host}.
 
 \dt \cw{\-proxycmd} \e{command}
 

doc/man-pscp.but

@@ -118,9 +118,9 @@ commands such as \q{\c{w}}).
 \dt \cw{-ssh-connection}
 
 \dd Force use of the \q{bare \cw{ssh-connection}} protocol. This is
-only likely to be useful when connecting to a \e{psusan(1)} server,
-most likely with an absolute path to a Unix-domain socket in place
-of \e{host}.
+only likely to be useful when connecting to a \cw{psusan}(\e{1})
+server, most likely with an absolute path to a Unix-domain socket in
+place of \e{host}.
 
 \dt \cw{-ssh}
 

doc/man-psftp.but

@@ -106,9 +106,9 @@ commands such as \q{\c{w}}).
 \dt \cw{-ssh-connection}
 
 \dd Force use of the \q{bare \cw{ssh-connection}} protocol. This is
-only likely to be useful when connecting to a \e{psusan(1)} server,
-most likely with an absolute path to a Unix-domain socket in place
-of \e{host}.
+only likely to be useful when connecting to a \cw{psusan}(\e{1})
+server, most likely with an absolute path to a Unix-domain socket in
+place of \e{host}.
 
 \dt \cw{-ssh}
 

doc/man-psocks.but

@@ -18,8 +18,8 @@ IPv4 and IPv6 connections. It does not support requiring
 authentication of its clients.
 
 \cw{psocks} can be used together with an SSH client such as
-\cw{putty(1)} to implement a reverse dynamic SSH tunnel. It can also
-be used for network protocol debugging, as it can record all the
+\cw{putty}(\e{1}) to implement a reverse dynamic SSH tunnel. It can
+also be used for network protocol debugging, as it can record all the
 traffic passing through it in various ways.
 
 By default, \cw{psocks} listens to connections from localhost only,
@@ -84,8 +84,8 @@ have the connection's traffic piped into it, similar to \cw{-f}.
 
 \S{psocks-manpage-examples} EXAMPLES
 
-In combination with the \e{plink(1)} SSH client, to set up a reverse
-dynamic SSH tunnel, in which the remote listening port 1080 on
+In combination with the \cw{plink}(\e{1}) SSH client, to set up a
+reverse dynamic SSH tunnel, in which the remote listening port 1080 on
 remote host \cw{myhost} acts as a SOCKS server giving access to your
 local network:
 

doc/man-psusan.but

@@ -200,7 +200,7 @@ And the setup script \cw{uml-psusan.sh} might look like this:
 
 Now set up a PuTTY saved session as in the Docker example above.
 Basically you'll want to use the above \cw{linux} command as the local
-proxy command. However, it's worth wrapping it in \c{setsid}(\e{1}),
+proxy command. However, it's worth wrapping it in \cw{setsid}(\e{1}),
 because when UML terminates, it kills its entire process group. So
 it's better that PuTTY should not be part of that group, and should
 have the opportunity to shut down cleanly by itself. So probably you

doc/man-pterm.but

@@ -76,7 +76,7 @@ will be ignored unless the \cw{BoldAsColour} resource is set to 0 or 2.
 \dt \cw{\-geometry} \e{geometry}
 
 \dd Specify the size of the terminal, in rows and columns of text. See
-\e{X(7)} for more information on the syntax of geometry
+\cw{X}(\e{7}) for more information on the syntax of geometry
 specifications.
 
 \dt \cw{\-sl} \e{lines}

doc/man-putty.but

@@ -55,7 +55,7 @@ will be ignored unless the \cw{BoldAsColour} resource is set to 0 or 2.
 \dt \cw{\-geometry} \e{geometry}
 
 \dd Specify the size of the terminal, in rows and columns of text.
-See \e{X(7)} for more information on the syntax of geometry
+See \cw{X}(\e{7}) for more information on the syntax of geometry
 specifications.
 
 \dt \cw{\-sl} \e{lines}

doc/man-puttytel.but

@@ -56,7 +56,7 @@ will be ignored unless the \cw{BoldAsColour} resource is set to 0 or 2.
 \dt \cw{\-geometry} \e{geometry}
 
 \dd Specify the size of the terminal, in rows and columns of text. See
-\e{X(7)} for more information on the syntax of geometry
+\cw{X}(\e{7}) for more information on the syntax of geometry
 specifications.
 
 \dt \cw{\-sl} \e{lines}