Add hyperlinks from program options to definition in man pages

Side-effect of hyperlinking is that typos in program and option names
are now detected by Sphinx.

Candidate -options were detected using:
    find -name *.rst | xargs grep '``-[^`]'
and then modified from ``-o`` to :option:`-o` using regex
    s/``\(-[^`]\+\)``/:option:`\1`/
+ manual modifications where necessary.

Non-hyphenated options were detected by looking at context around
program names:
    find bin -name *.rst | xargs -I{} -n1 basename {} .rst | sort -u
and grepping for program name with trailing whitespace.

Stand-alone program names like ``named`` are not hyperlinked in this
commit.

bin/check/named-checkconf.rst

@@ -65,7 +65,7 @@ Options
 .. option:: -p
 
    This option prints out the ``named.conf`` and included files in canonical form if
-   no errors were detected. See also the ``-x`` option.
+   no errors were detected. See also the :option:`-x` option.
 
 .. option:: -t directory
 
@@ -84,7 +84,7 @@ Options
    (``?``). This allows the contents of ``named.conf`` and related files
    to be shared - for example, when submitting bug reports -
    without compromising private data. This option cannot be used without
-   ``-p``.
+   :option:`-p`.
 
 .. option:: -z
 

bin/check/named-checkzone.rst

@@ -61,7 +61,7 @@ Options
 .. option:: -J filename
 
    When loading the zone file, this option tells ``named`` to read the journal from the given file, if
-   it exists. This implies ``-j``.
+   it exists. This implies :option:`-j`.
 
 .. option:: -c class
 

bin/check/named-compilezone.rst

@@ -63,7 +63,7 @@ Options
 .. option:: -J filename
 
    When loading the zone file, this option tells ``named`` to read the journal from the given file, if
-   it exists. This implies ``-j``.
+   it exists. This implies :option:`-j`.
 
 .. option:: -c class