[Qemu-trivial] [PATCH trivial] vl: Avoid to close stdout after finish 'writeconfig' option

[Chen Gang <gang.chen.5i5j@gmail.com>]

After finish 'writeconfig' to stdout (with '-'), we want to copy/past
the related information mannually, not for redirection ('readconfig'
does not support '-').

So we can not close the stdout, or next options which may use stdout
will not be displayed.


Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 vl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/vl.c b/vl.c
index 9975e5a..215467f 100644
--- a/vl.c
+++ b/vl.c
@@ -3855,7 +3855,9 @@ int main(int argc, char **argv, char **envp)
                         }
                     }
                     qemu_config_write(fp);
-                    fclose(fp);
+                    if (fp != stdout) {
+                        fclose(fp);
+                    }
                     break;
                 }
             case QEMU_OPTION_qtest:
-- 
1.7.11.7