Don't let rpm complain about a missing /etc/magic.mgc file

--- ./build/rpmfc.c.orig	2012-06-01 13:42:06.000000000 +0000
+++ ./build/rpmfc.c	2012-06-01 13:42:30.000000000 +0000
@@ -900,7 +900,7 @@ static int initAttrs(rpmfc fc)
 rpmRC rpmfcClassify(rpmfc fc, ARGV_t argv, rpm_mode_t * fmode)
 {
     ARGV_t fcav = NULL;
-    int msflags = MAGIC_CHECK | MAGIC_COMPRESS | MAGIC_NO_CHECK_TOKENS;
+    int msflags = MAGIC_COMPRESS | MAGIC_NO_CHECK_TOKENS;
     magic_t ms = NULL;
     rpmRC rc = RPMRC_FAIL;