meson: also indent scripts with 8 spaces

src/basic/cap-to-name.awk

@@ -1,5 +1,9 @@
-BEGIN{ print "static const char* const capability_names[] = { "}
+BEGIN{
+        print "static const char* const capability_names[] = { "
+}
 {
-    printf "        [%s] = \"%s\",\n", $1, tolower($1)
+        printf "        [%s] = \"%s\",\n", $1, tolower($1)
+}
+END{
+        print "};"
 }
-END{print "};"}