Fix error message typo for pure asm without outputs

Author: Amanieu

compiler/rustc_builtin_macros/src/asm.rs

@@ -273,7 +273,7 @@ fn parse_args<'a>(
     if args.options.contains(ast::InlineAsmOptions::PURE) && !have_real_output {
         ecx.struct_span_err(
             args.options_spans.clone(),
-            "asm with `pure` option must have at least one output",
+            "asm with the `pure` option must have at least one output",
         )
         .emit();
     }

src/test/ui/asm/bad-options.rs

@@ -9,9 +9,9 @@ fn main() {
         //~^ ERROR the `nomem` and `readonly` options are mutually exclusive
         asm!("", options(pure, nomem, noreturn));
         //~^ ERROR the `pure` and `noreturn` options are mutually exclusive
-        //~^^ ERROR asm with `pure` option must have at least one output
+        //~^^ ERROR asm with the `pure` option must have at least one output
         asm!("{}", in(reg) foo, options(pure, nomem));
-        //~^ ERROR asm with `pure` option must have at least one output
+        //~^ ERROR asm with the `pure` option must have at least one output
         asm!("{}", out(reg) foo, options(noreturn));
         //~^ ERROR asm outputs are not allowed with the `noreturn` option
     }

src/test/ui/asm/bad-options.stderr

@@ -10,13 +10,13 @@ error: the `pure` and `noreturn` options are mutually exclusive
 LL |         asm!("", options(pure, nomem, noreturn));
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: asm with `pure` option must have at least one output
+error: asm with the `pure` option must have at least one output
   --> $DIR/bad-options.rs:10:18
    |
 LL |         asm!("", options(pure, nomem, noreturn));
    |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: asm with `pure` option must have at least one output
+error: asm with the `pure` option must have at least one output
   --> $DIR/bad-options.rs:13:33
    |
 LL |         asm!("{}", in(reg) foo, options(pure, nomem));

src/test/ui/asm/naked-functions.rs

@@ -124,7 +124,7 @@ unsafe extern "C" fn invalid_options() {
 #[naked]
 unsafe extern "C" fn invalid_options_continued() {
     asm!("", options(readonly, nostack), options(pure));
-    //~^ ERROR asm with `pure` option must have at least one output
+    //~^ ERROR asm with the `pure` option must have at least one output
     //~| WARN asm options unsupported in naked functions: `nostack`, `pure`, `readonly`
     //~| WARN this was previously accepted
     //~| WARN asm in naked functions must use `noreturn` option

src/test/ui/asm/naked-functions.stderr

@@ -1,4 +1,4 @@
-error: asm with `pure` option must have at least one output
+error: asm with the `pure` option must have at least one output
   --> $DIR/naked-functions.rs:126:14
    |
 LL |     asm!("", options(readonly, nostack), options(pure));