Fix #2927

tests/ui/non_expressive_names.rs

@@ -1,7 +1,7 @@
 
 
 #![warn(clippy,similar_names)]
-#![allow(unused)]
+#![allow(unused, println_empty_string)]
 
 
 struct Foo {
@@ -142,6 +142,11 @@ fn underscores_and_numbers() {
     let _1_ok= 1;
 }
 
+fn issue2927() {
+  let args = 1;
+  format!("{:?}", 2);
+}
+
 struct Bar;
 
 impl Bar {

tests/ui/non_expressive_names.stderr

@@ -1,23 +1,3 @@
-error: using `println!("")`
-  --> $DIR/non_expressive_names.rs:60:14
-   |
-60 |         _ => println!(""),
-   |              ^^^^^^^^^^^^ help: replace it with: `println!()`
-   |
-   = note: `-D println-empty-string` implied by `-D warnings`
-
-error: using `println!("")`
-   --> $DIR/non_expressive_names.rs:128:18
-    |
-128 |             1 => println!(""),
-    |                  ^^^^^^^^^^^^ help: replace it with: `println!()`
-
-error: using `println!("")`
-   --> $DIR/non_expressive_names.rs:132:18
-    |
-132 |             1 => println!(""),
-    |                  ^^^^^^^^^^^^ help: replace it with: `println!()`
-
 error: binding's name is too similar to existing binding
   --> $DIR/non_expressive_names.rs:18:9
    |
@@ -170,22 +150,22 @@ error: consider choosing a more descriptive name
     |         ^^^^^^^
 
 error: consider choosing a more descriptive name
-   --> $DIR/non_expressive_names.rs:149:13
+   --> $DIR/non_expressive_names.rs:154:13
     |
-149 |         let _1 = 1;
+154 |         let _1 = 1;
     |             ^^
 
 error: consider choosing a more descriptive name
-   --> $DIR/non_expressive_names.rs:150:13
+   --> $DIR/non_expressive_names.rs:155:13
     |
-150 |         let ____1 = 1;
+155 |         let ____1 = 1;
     |             ^^^^^
 
 error: consider choosing a more descriptive name
-   --> $DIR/non_expressive_names.rs:151:13
+   --> $DIR/non_expressive_names.rs:156:13
     |
-151 |         let __1___2 = 12;
+156 |         let __1___2 = 12;
     |             ^^^^^^^
 
-error: aborting due to 20 previous errors
+error: aborting due to 17 previous errors