[FFmpeg-cvslog] configure: Use right variable and right value for AIX ar flags

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Sat Nov  4 18:50:30 2017 +0100| [8e0febe28effe7f427e45190eab37110126161ea] | committer: Diego Biurrun

configure: Use right variable and right value for AIX ar flags

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8e0febe28effe7f427e45190eab37110126161ea
---

 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 6f96a06f03..d43bd6ee86 100755
--- a/configure
+++ b/configure
@@ -3812,7 +3812,7 @@ case $target_os in
         SHFLAGS=-shared
         add_cppflags '-I\$(SRC_PATH)/compat/aix'
         enabled shared && add_ldflags -Wl,-brtl
-        ar_default='ar -Xany'
+        arflags='-Xany -r -c'
         ;;
     android)
         disable symver