linted the code.

src/event_processor.rs

@@ -5,7 +5,10 @@ use crate::db::users::create_user;
 use crate::events::{CreateNewSecurity, CreateNewUser, Event};
 use crate::util::{CustomResult, Error};
 
-fn process_create_new_security_event(tx: &Transaction, event: CreateNewSecurity) -> CustomResult<()> {
+fn process_create_new_security_event(
+    tx: &Transaction,
+    event: CreateNewSecurity,
+) -> CustomResult<()> {
     let r = event.to_create_new_security().unwrap();
     create_security(tx, &r)?;
     Ok(())