misc: harmonize names

Type: fix

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: Ibad744788e200ce012ad88ff59c2c34920742454
diff --git a/src/vlib/init.c b/src/vlib/init.c
index 135f9d5..9b43ca3 100644
--- a/src/vlib/init.c
+++ b/src/vlib/init.c
@@ -377,7 +377,7 @@
 clib_error_t *
 vlib_call_all_init_functions (vlib_main_t * vm)
 {
-  /* Call dummy functions to make sure purely static modules are
+  /* Call placeholder functions to make sure purely static modules are
      linked in. */
 #define _(f) vlib_##f##_reference ();
   foreach_vlib_module_reference;