doc: Keep dissection options alphabetized

Keep the list of dissection options alphabetized, which
commit af0691342b upset.

doc/dissection-options.adoc

@@ -44,6 +44,12 @@ See the xref:tshark.html#decode_as[tshark](1) manual page for more examples.
 --
 // end::decode_as[]
 
+--disable-all-protocols::
++
+--
+Disable dissection of all protocols.
+--
+
 --disable-protocol <proto_name>[,<proto_name>,...]::
 +
 --
@@ -73,18 +79,6 @@ temporarily disable all protocols but a list of exceptions.
 Example: *--disable-protocol ALL --enable-protocol eth,ip*
 --
 
---only-protocols <protocols>::
-+
---
-Only enable dissection of these protocols, comma separated. Disable everything else.
---
-
---disable-all-protocols::
-+
---
-Disable dissection of all protocols.
---
-
 --enable-heuristic <short_name>::
 +
 --
@@ -145,6 +139,12 @@ network, possibly leading to dropped packets.
 // end::tshark[]
 --
 
+--only-protocols <protocols>::
++
+--
+Only enable dissection of these protocols, comma separated. Disable everything else.
+--
+
 -t  (a|ad|adoy|d|dd|e|r|u|ud|udoy)[.[N]]|.[N]::
 +
 --