Use struct update syntax for some TargetOptions

Author: thaliaarchi

compiler/rustc_target/src/spec/base/linux_musl.rs

@@ -1,12 +1,11 @@
 use crate::spec::{LinkSelfContainedDefault, TargetOptions, base, crt_objects};
 
 pub(crate) fn opts() -> TargetOptions {
-    let mut base = base::linux::opts();
-
-    base.env = "musl".into();
-    base.pre_link_objects_self_contained = crt_objects::pre_musl_self_contained();
-    base.post_link_objects_self_contained = crt_objects::post_musl_self_contained();
-    base.link_self_contained = LinkSelfContainedDefault::InferredForMusl;
-
-    base
+    TargetOptions {
+        env: "musl".into(),
+        pre_link_objects_self_contained: crt_objects::pre_musl_self_contained(),
+        post_link_objects_self_contained: crt_objects::post_musl_self_contained(),
+        link_self_contained: LinkSelfContainedDefault::InferredForMusl,
+        ..base::linux::opts()
+    }
 }

compiler/rustc_target/src/spec/base/linux_ohos.rs

@@ -1,12 +1,11 @@
 use crate::spec::{TargetOptions, TlsModel, base};
 
 pub(crate) fn opts() -> TargetOptions {
-    let mut base = base::linux::opts();
-
-    base.env = "ohos".into();
-    base.crt_static_default = false;
-    base.tls_model = TlsModel::Emulated;
-    base.has_thread_local = false;
-
-    base
+    TargetOptions {
+        env: "ohos".into(),
+        crt_static_default: false,
+        tls_model: TlsModel::Emulated,
+        has_thread_local: false,
+        ..base::linux::opts()
+    }
 }