Melhoria de implementação e organização das mensagens.

[SOMA-3827][SOMA-4161]

sga/configuration.lua

@@ -59,8 +59,7 @@ local function get_from_multiple(filename, sga_name, config)
 
    local config_data = sgas[sga_name]
    if not config_data then
-      warning = warning ~= "" and warning..'\n' or ""
-      return nil, warning..string.format(err, filename, "'"..sga_name.."' not found")
+      return nil, warning..'\n'..string.format(err, filename, "'"..sga_name.."' not found")
    end
    return config_data, warning
 end
@@ -128,14 +127,14 @@ function configuration.check(config, just_warn)
    }
    local err = schema.CheckSchema(config, config_schema)
    if err then
-      local prefix = ""
+      err = " Configuration error: \n"..tostring(err).."\n"
       if config.sga_name then
-         prefix =  "["..config.sga_name.."] "
+         err =  "["..config.sga_name.."]"..err
       end
       if just_warn then
-         io.stderr:write("[WARNING] "..prefix.."Configuration error: \n"..tostring(err).."\n")
+         io.stderr:write("[WARNING]"..err)
       else
-         io.stderr:write(prefix.."Configuration error: \n"..tostring(err).."\n")
+         io.stderr:write(err)
          os.exit(1)
       end
    end