Fix #78 - Added paragraph explaining that exceptions to Rule G-1050 exist (like Logger)

Author: kibeha

docs/4-language-usage/1-general/g-1050.md

@@ -9,6 +9,8 @@ Literals are often used more than once in your code. Having them defined as a co
 
 All constants should be collated in just one package used as a library. If these constants should be used in SQL too it is good practice to write a deterministic package function for every constant.
 
+In specific situations this rule could lead to an extreme plethora of constants, for example if you use Logger like `logger.append_param(p_params =>l_params, p_name => 'p_param1_todo', p_val => p_param1_todo);`, where the value for `p_name` always should be the name of the variable that is passed to `p_val`. For such cases it would be overkill to add constants for every single variable name you are logging, so if you use Logger or similar, consider making that an exception to the rule, just document exactly which exceptions you will allow and stick to them.
+
 ## Example (bad)
 
 ``` sql