[PATCH 1/2] testsuite/lib/set_unbuffered_mode.c: Fix return type

The __gdb_set_unbuffered_output constructor function in
testsuite/lib/set_unbuffered_mode.c is defined to return int (and then
does not have a return statement), when it should be defined to return
void.  This fixes it.

Change-Id: I94fc587c90601f6ed58cee31b94a414b77bbc733
---
 gdb/testsuite/lib/set_unbuffered_mode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/testsuite/lib/set_unbuffered_mode.c b/gdb/testsuite/lib/set_unbuffered_mode.c
index 4fedca672dd..6d69ccabaeb 100644
--- a/gdb/testsuite/lib/set_unbuffered_mode.c
+++ b/gdb/testsuite/lib/set_unbuffered_mode.c
@@ -19,8 +19,8 @@
 
 #include <stdio.h>
 
-static int __gdb_set_unbuffered_output (void) __attribute__ ((constructor));
-static int
+static void __gdb_set_unbuffered_output (void) __attribute__ ((constructor));
+static void
 __gdb_set_unbuffered_output (void)
 {
   setvbuf (stdout, NULL, _IONBF, BUFSIZ);
-- 
2.54.0