ERROR 1273 (HY000) at line 89541: Collation desconhecida: 'utf8mb4_unicode_520_c code example

Example: mariadb unknown collation: 'utf8mb4_0900_ai_ci'

I just opened the dump.sql file in Notepad++ and 
hit CTRL+H to find and replace the string 
"utf8mb4_0900_ai_ci" and replace with "utf8mb4_general_ci"