Fixed typos for some nsedoc tag names:

INFO processing file `nselib/datafiles.lua'
ERROR undefined handler for tag `type'
INFO processing file `nselib/dns.lua'
ERROR undefined handler for tag `result'
ERROR undefined handler for tag `result'
INFO processing file `nselib/netbios.lua'
ERROR undefined handler for tag `returns'
INFO processing file `nselib/snmp.lua'
ERROR undefined handler for tag `result'
INFO processing file `scripts/SSLv2-support.nse'
ERROR undefined handler for tag `ouput'

Removed a @see tag which refers to Lua's string.format rather than to NSE docs:
INFO generating file `docs/modules/stdnse.html'
ERROR unresolved reference to symbol `string.format'

nselib/datafiles.lua

@@ -15,7 +15,7 @@ local stdnse = require "stdnse"
 
 ---
 -- Capture patterns for common data files, indexed by filename.
--- @type table
+-- @class table
 -- @name common_files
 -- @see parse_file
 local common_files = {

nselib/dns.lua

@@ -636,7 +636,7 @@ end
 ---
 -- Decodes DNS flags.
 --@param Flags as binary digit string.
---@result Table representing flags.
+--@return Table representing flags.
 local function decodeFlags(flgStr)
    flags = {}
    flgTbl = str2tbl(flgStr)
@@ -659,7 +659,7 @@ end
 ---
 -- Decodes a DNS packet.
 --@param data Encoded DNS packet.
---@result Table representing DNS packet.
+--@return Table representing DNS packet.
 function decode(data)
    local pos
    local pkt = {}

nselib/netbios.lua

@@ -76,7 +76,7 @@ end
 --  the string representation. If the encoding is invalid, it will still attempt
 --  to decode the string as best as possible. 
 --@param encoded_name The L2-encoded name
---@returns the decoded name and the scope. The name will still be padded, and the
+--@return the decoded name and the scope. The name will still be padded, and the
 --         scope will never be nil (empty string is returned if no scope is present)
 function name_decode(encoded_name)
 	local name = ""

nselib/snmp.lua

@@ -537,7 +537,7 @@ end
 ---
 -- Fetches values from a SNMP response.
 --@param resp SNMP Response (will be decoded if necessary).
---@result Table with all decoded responses and their OIDs.
+--@return Table with all decoded responses and their OIDs.
 function fetchResponseValues(resp)
    if (type(resp) == "string") then
       local _

nselib/stdnse.lua

@@ -26,7 +26,6 @@ module(... or "stdnse");
 --@param level Optional verbosity level.
 --@param fmt Format string according to string.format specifiers.
 --@param ... Arguments to format.
---@see string.format
 print_debug = function(level, fmt, ...)
   local verbosity = tonumber(level);
   if verbosity then

scripts/SSLv2-support.nse

@@ -5,7 +5,7 @@ offers.
 ]]
 
 ---
---@ouput
+--@output
 -- 443/tcp open   https   syn-ack\n
 -- |  SSLv2: server still supports SSLv2\n
 -- |       SSL2_RC4_128_WITH_MD5\n