Add a missing assert.

Spotted by: pprocacci  (Thanks!)

Fixes: #752



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5103 d4fa192b-c00b-0410-8231-f00ffab90ce4

lib/libvcl/vcc_compile.c

@@ -365,6 +365,7 @@ vcc_new_source(const char *b, const char *e, const char *name)
 	sp = calloc(sizeof *sp, 1);
 	assert(sp != NULL);
 	sp->name = strdup(name);
+	AN(sp->name);
 	sp->b = b;
 	sp->e = e;
 	return (sp);