Thanks, and yes, you are right. The problem is the 37 after the string "View all products for the selected manufacturer". The number I cannot link with anything as I have less than 10 products in the catalog. So, I am a bit lost... In debugger I found that the string of the code as follow
return call_user_func_array('printf', $args);
with the $args as follows {"View all %s products ", "Rodriguez Sandoval"}, produces the string with 37 at the end. As far as I understand the function call_user_func_array is a PHP function, so, I am lost here as arguments are correct but the result is a bit different. I can imagine only that 37 is an error code which happens before the line execution and it is inserted somewhere after the line.