[PATCH] newlib: libc: reente.h: remove unnecessary parentheses

[jiawei]

From: Jia-Wei Chen <jiawei@iscas.ac.cn>

The compiler warns the double parentheses are unnecessary in some
target, and cause fail cases when doing some testcases in regression.

gcc/testsuite/g++.dg/warn/Wstringop-overflow-6.C

Remove the unnecessary parentheses will fix it. See more details in 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85775

Same like in commit 05425831290c9869bc7987b5df3ce84aa4f19a6c,
Author: Maxim Blinov <maxim.blinov@embecosm.com>
Date:   Thu Jul 22 22:41:42 2021 +0100

     Remove unneccesary parenthesis around declarator

Thanks for Sebastian Huber's remind!

ChangeLog:

        * newlib/libc/include/sys/reent.h (struct _reent): Remove
        * additonal parentheses. 

---
 newlib/libc/include/sys/reent.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
index 4a3cfbd34..64d76c27c 100644
--- a/newlib/libc/include/sys/reent.h
+++ b/newlib/libc/include/sys/reent.h
@@ -421,7 +421,7 @@ struct _reent
   char *_asctime_buf;
 
   /* signal info */
-  void (**(_sig_func))(int);
+  void (** _sig_func)(int);
 
 #ifdef _REENT_BACKWARD_BINARY_COMPAT
   struct _atexit *_reserved_6;
-- 
2.25.1