Fix "missing braces around initializer" gcc error.
Fix "missing braces around initializer" gcc error.

icing/mod_h2,r4-keisuke/mod_h2,icing/mod_h2,r4-keisuke/mod_h2,icing/mod_h2,r4-keisuke/mod_h2,icing/mod_h2,icing/mod_h2,r4-keisuke/mod_h2,r4-keisuke/mod_h2,r4-keisuke/mod_h2