meson: also indent scripts with 8 spaces

src/basic/af-to-name.awk

@@ -1,5 +1,9 @@
-BEGIN{ print "static const char* const af_names[] = { "}
+BEGIN{
+        print "static const char* const af_names[] = { "
+}
 !/AF_FILE/ && !/AF_ROUTE/ && !/AF_LOCAL/ {
-    printf "        [%s] = \"%s\",\n", $1, $1
+        printf "        [%s] = \"%s\",\n", $1, $1
+}
+END{
+        print "};"
 }
-END{print "};"}