Fix some -Wpedantic warnings

Fixes:
warning: ISO C forbids empty initializer braces

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>

src/vrend_shader.c

@@ -2745,7 +2745,7 @@ create_swizzled_clipdist(struct dump_ctx *ctx,
                          const char *prefix,
                          const char *arrayname, int offset)
 {
-   char clipdistvec[4][64] = {};
+   char clipdistvec[4][64] = { 0, };
 
    char clip_indirect[32] = "";