The sound distributed version control system

clippy fixes: prefer is_empty() over == "" (clippy::comparison_to_empty)

Created by  3uGTfSxiPfZM9adJMcQLNHqMdb9m3ghhMAxFaFGdAmjJ  on May 9, 2022
YYEXUQCYK2O4YKSZXHRSXI54WDRFXPW4VB2RXPKIL5IQ3E3G22LAC
Change contents