Change the syntax of the internal `weak!` macro

Change the syntax to include parameter names and a trailing semicolon.

Motivation:
- Mirror the `syscall!` macro.
- Allow rustfmt to format it (when wrapped in parentheses).
- For better documentation (having the parameter names available in
  the source code is a bit nicer).
- Allow future improvements to this macro where we can sometimes use the
  symbol directly when it's statically known to be available.

1 files changed, 4 insertions, 4 deletions

diff --git a/library/std/src/sys/random/linux.rs b/library/std/src/sys/random/linux.rs
index e3cb79285cd..c0591ec0c15 100644
--- a/library/std/src/sys/random/linux.rs
+++ b/library/std/src/sys/random/linux.rs
@@ -73,13 +73,13 @@ fn getrandom(mut bytes: &mut [u8], insecure: bool) {
     // A weak symbol allows interposition, e.g. for perf measurements that want to
     // disable randomness for consistency. Otherwise, we'll try a raw syscall.
     // (`getrandom` was added in glibc 2.25, musl 1.1.20, android API level 28)
-    syscall! {
+    syscall!(
         fn getrandom(
             buffer: *mut libc::c_void,
             length: libc::size_t,
-            flags: libc::c_uint
-        ) -> libc::ssize_t
-    }
+            flags: libc::c_uint,
+        ) -> libc::ssize_t;
+    );
 
     static GETRANDOM_AVAILABLE: AtomicBool = AtomicBool::new(true);
     static GRND_INSECURE_AVAILABLE: AtomicBool = AtomicBool::new(true);