fixup lint name

Author: WaffleLapkin

tests/ui/for_loop_unfixable.rs

@@ -8,7 +8,7 @@
     clippy::for_kv_map
 )]
 #[allow(clippy::linkedlist, clippy::unnecessary_mut_passed, clippy::similar_names)]
-#[allow(for_loop_over_fallibles)]
+#[allow(for_loops_over_fallibles)]
 fn main() {
     let vec = vec![1, 2, 3, 4];
 

tests/ui/for_loops_over_fallibles.rs

@@ -1,6 +1,6 @@
 #![warn(clippy::for_loops_over_fallibles)]
 #![allow(clippy::uninlined_format_args)]
-#![allow(for_loop_over_fallibles)]
+#![allow(for_loops_over_fallibles)]
 
 fn for_loops_over_fallibles() {
     let option = Some(1);