Temporary fix list --table handling

Author: jgmdev

src/ppm.lua

@@ -2203,6 +2203,7 @@ local function print_addon_info(type, addons, filters)
     if TABLE then
       local addons = common.grep(sorted, function(addon) return addon.status ~= "incompatible" end)
       print(get_table(HEADER or common.map(TABLE, function(header)
+        if _G.type(header) == "function" then header = header() end
         return ("" .. header:gsub("^.*%.", ""):gsub("^%l", string.upper):gsub("_", " "))
       end), common.map(result[plural], function(addon)
         return common.map(TABLE, function(header)