[babl] build: fix typo in previous attempt at fixing issue #41

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 3216e0cfd67b6e642277f049e4a6d59d8c0258d2
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Aug 2 16:29:20 2019 +0200

    build: fix typo in previous attempt at fixing issue #41

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index e4ebe8b..d46c12e 100644
--- a/meson.build
+++ b/meson.build
@@ -176,7 +176,7 @@ add_project_arguments(common_c_flags, language: 'c')
 
 mmx_args = []
 sse_args = []
-sse2_args = []
+sse2_cflags = []
 sse4_1_cflags = []
 avx2_cflags = []