Update allow_attributes_without_reason.rs

Author: Centri3

tests/ui/allow_attributes_without_reason.rs

@@ -31,7 +31,7 @@ fn main() {
 
 // Make sure this is not triggered on `?` desugaring
 
-pub fn trigger_fp_option() -> Option<()>{
+pub fn trigger_fp_option() -> Option<()> {
     Some(())?;
     None?;
     Some(())