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

--- build/rpmfc.c.orig	2020-09-30 13:08:18.770584384 +0000

+++ build/rpmfc.c	2020-09-30 13:08:54.306508417 +0000

@@ -1159,7 +1159,7 @@ static uint32_t getElfColor(const char *

 rpmRC rpmfcClassify(rpmfc fc, ARGV_t argv, rpm_mode_t * fmode)

 {

-    int msflags = MAGIC_CHECK | MAGIC_COMPRESS | MAGIC_NO_CHECK_TOKENS | MAGIC_ERROR;

+    int msflags = MAGIC_COMPRESS | MAGIC_NO_CHECK_TOKENS | MAGIC_ERROR;

     int mimeflags = msflags | MAGIC_MIME_TYPE;

     int nerrors = 0;

     rpmRC rc = RPMRC_FAIL;