REGTEST: adapt some reg tests after renaming.

Some reg tests and their dependencies have been renamed. They may be
referenced by the .vtc files. So, this patch modifies also the references
to these dependencies.
diff --git a/reg-tests/compression/lua_validation.vtc b/reg-tests/compression/lua_validation.vtc
index c3be36e..6e8c1e8 100644
--- a/reg-tests/compression/lua_validation.vtc
+++ b/reg-tests/compression/lua_validation.vtc
@@ -10,7 +10,7 @@
 haproxy h1 -conf {
 global
 #	log stdout format short daemon
-	lua-load		${testdir}/s00000.lua
+	lua-load		${testdir}/lua_validation.lua
 
 defaults
 	mode			http