Address FIXME in test

Author: nrc

tests/cli-misc.rs

@@ -549,14 +549,12 @@ fn rls_exists_in_toolchain() {
 #[test]
 fn rls_does_not_exist_in_toolchain() {
     setup(&|config| {
-        // FIXME: If rls exists in the toolchain, this should suggest a command
-        // to run to install it
         expect_ok(config, &["rustup", "default", "stable"]);
         expect_err(
             config,
             &["rls", "--version"],
             &format!(
-                "'rls{}' is not installed for the toolchain 'stable-{}'",
+                "'rls{}' is not installed for the toolchain 'stable-{}'\nTo install, run `rustup component add rls`",
                 EXE_SUFFIX,
                 this_host_triple(),
             ),

tests/cli-v2.rs

@@ -843,7 +843,17 @@ fn update_unavailable_force() {
     setup(&|config| {
         let ref trip = TargetTriple::from_build();
         expect_ok(config, &["rustup", "update", "nightly"]);
-        expect_ok(config, &["rustup", "component", "add", "rls", "--toolchain", "nightly"]);
+        expect_ok(
+            config,
+            &[
+                "rustup",
+                "component",
+                "add",
+                "rls",
+                "--toolchain",
+                "nightly",
+            ],
+        );
         make_component_unavailable(config, "rls-preview", trip);
         expect_err(
             config,