[babl] build: append list of one element rather than string

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

commit 762cd25c4bf74d5313c5c17562af4cab6d8e79ea
Author: Øyvind Kolås <pippin gimp org>
Date:   Mon Jan 24 07:26:54 2022 +0100

    build: append list of one element rather than string

 babl/base/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/babl/base/meson.build b/babl/base/meson.build
index aae1ddf12..a88115f94 100644
--- a/babl/base/meson.build
+++ b/babl/base/meson.build
@@ -22,7 +22,7 @@ babl_base = static_library('babl_base',
   babl_base_sources,
   include_directories: [rootInclude, bablInclude],
   dependencies: [math, lcms],
-   c_args: common_c_flags + '-msse2'
+   c_args: common_c_flags + ['-msse2']
 ) 
 
 if host_cpu_family == 'x86_64'