Removed some extra trailing spaces

Mantle/MTLManagedObjectAdapter.m

@@ -438,14 +438,14 @@ - (id)managedObjectFromModel:(MTLModel<MTLManagedObjectSerializing> *)model inse
 				} else {
 					relationshipCollection = [NSMutableSet set];
 				}
-				
+
 				for (MTLModel *model in value) {
 					NSManagedObject *nestedObject = objectForRelationshipFromModel(model);
 					if (nestedObject == nil) return NO;
 
 					[relationshipCollection addObject:nestedObject];
 				}
-				
+
 				[managedObject setValue:relationshipCollection forKey:managedObjectKey];
 			} else {
 				NSManagedObject *nestedObject = objectForRelationshipFromModel(value);

MantleTests/MTLManagedObjectAdapterSpec.m

@@ -229,15 +229,15 @@
 
 			expect(parentOne.objectID).to.equal(parentTwo.objectID);
 		});
-		
+
 		it(@"should update relationships for an existing object", ^{
 			NSError *error;
 			MTLParent *parentOne = [MTLManagedObjectAdapter managedObjectFromModel:parentModel insertingIntoContext:context error:&error];
 			expect(parentOne).notTo.beNil();
 			expect(error).to.beNil();
 			expect(parentOne.orderedChildren).to.haveCountOf(3);
 			expect(parentOne.unorderedChildren).to.haveCountOf(3);
-			
+
 			MTLChild *child1Parent1 = parentOne.orderedChildren[0];
 			MTLChild *child2Parent1 = parentOne.orderedChildren[1];
 			MTLChild *child3Parent1 = parentOne.orderedChildren[2];
@@ -253,15 +253,15 @@
 			expect(error).to.beNil();
 			expect(parentTwo.orderedChildren).to.haveCountOf(2);
 			expect(parentTwo.unorderedChildren).to.haveCountOf(2);
-			
+
 			for (MTLChild *child in parentTwo.orderedChildren) {
 				expect(child.childID).notTo.equal(child2Parent1.childID);
 			}
-			
+
 			for (MTLChild *child in parentTwo.unorderedChildren) {
 				expect(child.childID).notTo.equal(childToDeleteModel.childID);
 			}
-			
+
 			MTLChild *child1Parent2 = parentTwo.orderedChildren[0];
 			MTLChild *child2Parent2 = parentTwo.orderedChildren[1];
 			expect(child1Parent2).to.equal(child1Parent1);