Update diff.rs (#4150)

Nishikoh · web-flow · commit e92e7778dfbd · 2020-04-30T22:43:02.000-05:00
diff --git a/rustfmt-core/rustfmt-lib/src/emitter/diff.rs b/rustfmt-core/rustfmt-lib/src/emitter/diff.rs
@@ -33,7 +33,7 @@ impl Emitter for DiffEmitter {
             } else {
                 print_diff(
                     mismatch,
-                    |line_num| format!("Diff in {} at line {}:", filename, line_num),
+                    |line_num| format!("Diff in {}:{}:", filename, line_num),
                     &self.config,
                 );
             }

Original file line number	Diff line number	Diff line change
`@@ -33,7 +33,7 @@ impl Emitter for DiffEmitter {`
`33`	`33`	`} else {`
`34`	`34`	`print_diff(`
`35`	`35`	`mismatch,`
`36`		`- \|line_num\| format!("Diff in {} at line {}:", filename, line_num),`
	`36`	`+ \|line_num\| format!("Diff in {}:{}:", filename, line_num),`
`37`	`37`	`&self.config,`
`38`	`38`	`);`
`39`	`39`	`}`