f change var name as suggested by val

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -2131,7 +2131,7 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 	/// Note that in some rare cases this may generate a `chain::Watch::update_channel` call.
 	pub fn timer_tick_occurred(&self) {
 		let mut persistence_guard = PersistenceNotifierGuard::new(&self.total_consistency_lock, &self.persistence_notifier);
-		let mut did_work = self.process_background_events();
+		let mut should_persist = self.process_background_events();
 
 		let mut channel_state_lock = self.channel_state.lock().unwrap();
 		let channel_state = &mut *channel_state_lock;
@@ -2147,7 +2147,7 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 							msg: update
 						});
 					}
-					did_work = true;
+					should_persist = true;
 					chan.set_update_status(UpdateStatus::Disabled);
 				},
 				UpdateStatus::EnabledStaged if chan.is_live() => {
@@ -2156,14 +2156,14 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 							msg: update
 						});
 					}
-					did_work = true;
+					should_persist = true;
 					chan.set_update_status(UpdateStatus::Enabled);
 				},
 				_ => {},
 			}
 		}
 
-		if !did_work {
+		if !should_persist {
 			persistence_guard.persistence_update = false;
 		}
 	}