Minor syntax and comments improvements

UI/PreferencesUI/UIxPreferences.m

@@ -1264,6 +1264,8 @@ static NSArray *reminderValues = nil;
           account = [folder lookupName: @"0" inContext: context acquire: NO];
 
           if ([account updateFilters])
+            // If Sieve is not enabled, the SOGoSieveManager will immediatly return a positive answer
+            // See [SOGoSieveManager updateFiltersForAccount:withUsername:andPassword:]
             results = [self responseWithStatus: 200
                          andJSONRepresentation: [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithBool:hasChanged], @"hasChanged", nil]];
 

UI/Scheduler/UIxCalListingActions.m

@@ -1057,8 +1057,7 @@ _computeBlocksPosition (NSArray *blocks)
   [self _prepareEventBlocks: &blocks withAllDays: &allDayBlocks];
   events = [self _fetchFields: eventsFields
            forComponentOfType: @"vevent"];
-  eventsBlocks
-  = [NSArray arrayWithObjects: events, allDayBlocks, blocks, nil];
+  eventsBlocks = [NSArray arrayWithObjects: events, allDayBlocks, blocks, nil];
   max = [events count];
   for (count = 0; count < max; count++)
   {