[PATCH v1] Replace __restrict with __restrict_arr in regex.h

[yang.zhang]

From: "yang.zhang" <zhangyang01@kylinos.cn>

when a C++ source file include this header file, it would build fail.

Signed-off-by: yang.zhang <zhangyang01@kylinos.cn>
---
Such as i build libgest, which would include regex.h, then it build fail.
The failure is relate to commit 3c75fac130b5.

In file included from ../../../cpukit/libgtest/googletest/googletest/include/gtest/internal/gtest-port.h:451,
                 from ../../../cpukit/libgtest/googletest/googletest/include/gtest/internal/gtest-internal.h:39,
                 from ../../../cpukit/libgtest/googletest/googletest/include/gtest/gtest.h:58,
                 from ../../../cpukit/libgtest/googletest/googletest/src/gtest-all.cc:39:
/home/yangzhang/software/toolchain/toolchain/aarch64-rtems6/include/regex.h:99:45: error: expected primary-expression before '__restrict'
   99 |                         size_t, regmatch_t [__restrict], int);

Signed-off-by: yang.zhang <zhangyang01@kylinos.cn>
---
 newlib/libc/include/regex.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/include/regex.h b/newlib/libc/include/regex.h
index fa3e26879..4da1a374e 100644
--- a/newlib/libc/include/regex.h
+++ b/newlib/libc/include/regex.h
@@ -96,7 +96,7 @@ __BEGIN_DECLS
 int	regcomp(regex_t *__restrict, const char *__restrict, int);
 size_t	regerror(int, const regex_t *__restrict, char *__restrict, size_t);
 int	regexec(const regex_t *__restrict, const char *__restrict,
-			size_t, regmatch_t [__restrict], int);
+			size_t, regmatch_t [__restrict_arr], int);
 void	regfree(regex_t *);
 __END_DECLS
 
-- 
2.34.1