doc: Use the right reference commands.

* doc/debugging.texi, doc/gpg-agent.texi, doc/gpg.texi, doc/gpgsm.texi,
doc/tools.texi: Fix.

doc/debugging.texi

@@ -108,10 +108,10 @@ backend and may change from release to release.
 For development, the best logging method on WindowsCE is the use of
 remote debugging using a log file name of @file{tcp://<ip-addr>:<port>}.
 The command @command{watchgnupg} may be used on the remote host to listen
-on the given port. (@pxref{option watchgnupg --tcp}).  For in the field
+on the given port (@pxref{option watchgnupg --tcp}).  For in the field
 tests it is better to make use of the logging facility provided by the
 @command{gpgcedev} driver (part of libassuan); this is enabled by using
-a log file name of @file{GPG2:}. (@pxref{option --log-file}).
+a log file name of @file{GPG2:} (@pxref{option --log-file}).
 
 @end itemize
 

doc/gpg-agent.texi

@@ -661,7 +661,7 @@ trustworthy enough into this file.  Places where to look for the
 fingerprint of a root certificate are letters received from the CA or
 the website of the CA (after making 100% sure that this is indeed the
 website of that CA).  You may want to consider disallowing interactive
-updates of this file by using the @xref{option --no-allow-mark-trusted}.
+updates of this file by using the @ref{option --no-allow-mark-trusted}.
 It might even be advisable to change the permissions to read-only so
 that this file can't be changed inadvertently.
 
@@ -1476,8 +1476,7 @@ following values are defined:
   Use a loopback pinentry.  This fakes a pinentry by using inquiries
   back to the caller to ask for a passphrase.  This option may only be
   set if the agent has been configured for that.
-  To disable this feature use @xref{option --no-allow-loopback-pinentry}.
-
+  To disable this feature use @ref{option --no-allow-loopback-pinentry}.
   @end table
 
 @item cache-ttl-opt-preset

doc/gpg.texi

@@ -1843,7 +1843,7 @@ key signer (defaults to 3)
 @item --tofu-default-policy @code{auto|good|unknown|bad|ask}
 @opindex tofu-default-policy
 The default TOFU policy (defaults to @code{auto}).  For more
-information about the meaning of this option, @xref{trust-model-tofu}.
+information about the meaning of this option, @pxref{trust-model-tofu}.
 
 @item --max-cert-depth @code{n}
 @opindex max-cert-depth

doc/gpgsm.texi

@@ -258,7 +258,7 @@ Export the private key and the certificate identified by @var{key-id} in
 a PKCS#12 format. When used with the @code{--armor} option a few
 informational lines are prepended to the output.  Note, that the PKCS#12
 format is not very secure and this command is only provided if there is
-no other way to exchange the private key. (@pxref{option --p12-charset})
+no other way to exchange the private key. (@xref{option --p12-charset})
 
 @item --export-secret-key-p8 @var{key-id}
 @itemx --export-secret-key-raw @var{key-id}
@@ -1588,15 +1588,15 @@ are marked by the list commands.
 @item validation-model
 This option overrides the command line option
 @option{validation-model} for the session.
-(@pxref{gpgsm-option --validation-model}.)
+(@xref{gpgsm-option --validation-model}.)
 
 @item with-key-data
 This option globally enables the command line option
-@option{--with-key-data}.  (@pxref{gpgsm-option --with-key-data}.)
+@option{--with-key-data}.  (@xref{gpgsm-option --with-key-data}.)
 
 @item enable-audit-log
 If @var{value} is true data to write an audit log is gathered.
-(@pxref{gpgsm-cmd getauditlog}.)
+(@xref{gpgsm-cmd getauditlog}.)
 
 @item allow-pinentry-notify
 If this option is used notifications about the launch of a Pinentry

doc/tools.texi

@@ -811,7 +811,7 @@ case a short name is not known.
 @item default
 This field is defined only for options for which the @code{default} or
 @code{default desc} flag is set.  If the @code{default} flag is set,
-its format is that of an @emph{option argument} (@xref{Format
+its format is that of an @emph{option argument} (@pxref{Format
 conventions}, for details).  If the default value is empty, then no
 default is known.  Otherwise, the value specifies the default value
 for this option.  If the @code{default desc} flag is set, the field is
@@ -821,7 +821,7 @@ not given.
 @item argdef
 This field is defined only for options for which the @code{optional
 arg} flag is set.  If the @code{no arg desc} flag is not set, its
-format is that of an @emph{option argument} (@xref{Format
+format is that of an @emph{option argument} (@pxref{Format
 conventions}, for details).  If the default value is empty, then no
 default is known.  Otherwise, the value specifies the default argument
 for this option.  If the @code{no arg desc} flag is set, the field is