silly run with no arg + comment change

Author: Oneirical

src/tools/run-make-support/src/rustc.rs

@@ -164,12 +164,6 @@ impl Rustc {
         self
     }
 
-    /// Favours dynamic linking over static linking in rustc. Equivalent to `-C prefer-dynamic``.
-    pub fn prefer_dynamic(&mut self) -> &mut Self {
-        self.cmd.arg("-Cprefer-dynamic");
-        self
-    }
-
     /// Add an extra argument to the linker invocation, via `-Clink-arg`.
     pub fn link_arg(&mut self, link_arg: &str) -> &mut Self {
         self.cmd.arg(format!("-Clink-arg={link_arg}"));

tests/run-make/no-cdylib-as-rdylib/rmake.rs

@@ -1,6 +1,6 @@
 // This test produces an rlib and a cdylib from bar.rs.
 // Then, foo.rs attempts to link to the bar library.
-// If the test works correctly, rustc will favour the rlib and ignore the cdylib.
+// If the test passes, that means rustc favored the rlib and ignored the cdylib.
 // If the test fails, that is because the cdylib was picked, which does not export
 // any Rust symbols.
 // See https://github.com/rust-lang/rust/pull/113695
@@ -11,6 +11,6 @@ use run_make_support::{run, rustc};
 
 fn main() {
     rustc().input("bar.rs").crate_type("rlib").crate_type("cdylib").run();
-    rustc().input("foo.rs").prefer_dynamic().run();
-    run();
+    rustc().input("foo.rs").arg("-Cprefer-dynamic").run();
+    run("foo");
 }