doc: Fix order of protocol messages in listing

The order of AuthenticationGSSContinue and AuthenticationSSPI was
swapped, based on the other Authentication* protocol messages being
listed in subcode order.

doc/src/sgml/protocol.sgml

@@ -3238,7 +3238,7 @@ AuthenticationGSS (B)
 
 <varlistentry>
 <term>
-AuthenticationSSPI (B)
+AuthenticationGSSContinue (B)
 </term>
 <listitem>
 <para>
@@ -3256,7 +3256,7 @@ AuthenticationSSPI (B)
 </varlistentry>
 <varlistentry>
 <term>
-        Int32(8)
+        Int32
 </term>
 <listitem>
 <para>
@@ -3266,11 +3266,21 @@ AuthenticationSSPI (B)
 </varlistentry>
 <varlistentry>
 <term>
-        Int32(9)
+        Int32(8)
 </term>
 <listitem>
 <para>
-                Specifies that SSPI authentication is required.
+                Specifies that this message contains GSSAPI or SSPI data.
+</para>
+</listitem>
+</varlistentry>
+<varlistentry>
+<term>
+        Byte<replaceable>n</replaceable>
+</term>
+<listitem>
+<para>
+                GSSAPI or SSPI authentication data.
 </para>
 </listitem>
 </varlistentry>
@@ -3283,7 +3293,7 @@ AuthenticationSSPI (B)
 
 <varlistentry>
 <term>
-AuthenticationGSSContinue (B)
+AuthenticationSSPI (B)
 </term>
 <listitem>
 <para>
@@ -3300,32 +3310,22 @@ AuthenticationGSSContinue (B)
 </listitem>
 </varlistentry>
 <varlistentry>
-<term>
-        Int32
-</term>
-<listitem>
-<para>
-                Length of message contents in bytes, including self.
-</para>
-</listitem>
-</varlistentry>
-<varlistentry>
 <term>
         Int32(8)
 </term>
 <listitem>
 <para>
-                Specifies that this message contains GSSAPI or SSPI data.
+                Length of message contents in bytes, including self.
 </para>
 </listitem>
 </varlistentry>
 <varlistentry>
 <term>
-        Byte<replaceable>n</replaceable>
+        Int32(9)
 </term>
 <listitem>
 <para>
-                GSSAPI or SSPI authentication data.
+                Specifies that SSPI authentication is required.
 </para>
 </listitem>
 </varlistentry>