Collapse if statements, change message to lowercase

Author: NotStirred

compiler/rustc_resolve/src/macros.rs

@@ -548,12 +548,13 @@ impl<'a, 'tcx> Resolver<'a, 'tcx> {
 
             err.span_label(path.span, format!("not {} {}", article, expected));
 
-            if !path.span.from_expansion() {
-                // Suggest moving the macro out of the derive() as the macro isn't Derive
-                if kind == MacroKind::Derive && ext.macro_kind() != MacroKind::Derive {
-                    err.span_help(path.span, "Remove from the surrounding `derive()`");
-                    err.help(format!("Add as non-Derive macro\n`#[{}]`", path_str));
-                }
+            // Suggest moving the macro out of the derive() as the macro isn't Derive
+            if !path.span.from_expansion()
+                && kind == MacroKind::Derive
+                && ext.macro_kind() != MacroKind::Derive
+            {
+                err.span_help(path.span, "remove from the surrounding `derive()`");
+                err.help(format!("add as non-Derive macro\n`#[{}]`", path_str));
             }
 
             err.emit();