Adjusted spacing in comments for consistency

diff --git a/src/FBSettings.h b/src/FBSettings.h
index 242f49e..74a838d 100644
--- a/src/FBSettings.h
+++ b/src/FBSettings.h
@@ -65,6 +65,7 @@ typedef NS_ENUM(NSUInteger, FBBetaFeatures) {