Fix changelog, replace a couple qerror calls with error

Ref #1746

docs/changelog.txt

@@ -45,7 +45,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 - `quickfort`: Dreamfort blueprint set improvements: add a streamlined checklist for all required dreamfort commands and give names to stockpiles, levers, bridges, and zones
 
 ## Lua
-- ``processArgs2()`` added to utils.lua, providing a callback interface for parameter parsing and getopt-like flexibility for parameter ordering and combination (see docs in ``library/lua/utils.lua`` and ``library/lua/3rdparty/alt_getopt.lua`` for details).
+- ``processArgsGetopt()`` added to utils.lua, providing a callback interface for parameter parsing and getopt-like flexibility for parameter ordering and combination (see docs in ``library/lua/utils.lua`` and ``library/lua/3rdparty/alt_getopt.lua`` for details).
 
 # 0.47.04-r4
 

library/lua/utils.lua

@@ -647,10 +647,10 @@ function processArgsGetopt(args, optionActions)
     for _,optionAction in ipairs(optionActions) do
         local sh_opt,long_opt = optionAction[1], optionAction[2]
         if not sh_opt or type(sh_opt) ~= 'string' or #sh_opt ~= 1 then
-            qerror('optionAction missing option letter at index 1')
+            error('optionAction missing option letter at index 1')
         end
         if not optionAction.handler then
-            qerror(string.format('handler missing for option "%s"', sh_opt))
+            error(string.format('handler missing for option "%s"', sh_opt))
         end
         sh_opts = sh_opts .. sh_opt
         if optionAction.hasArg then sh_opts = sh_opts .. ':' end