Architecture specific change in rpms/firefox.git

The package rpms/firefox.git has added or updated architecture specific content in its
spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s):
https://src.fedoraproject.org/cgit/rpms/firefox.git/commit/?id=d372022a2ca67....

Change:
+%ifarch s390 s390x

Thanks.

Full change:
============

commit d372022a2ca67d03e927ed6dec19687ee8242448
Author: Jan Horak 
Date:   Tue Aug 29 15:54:56 2017 +0200

Disable ion for s390(x)

diff --git a/firefox.spec b/firefox.spec
index 1c945a8..8395f36 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -462,6 +462,10 @@ echo "ac_add_options --with-system-icu" >> .mozconfig
 %else
 echo "ac_add_options --without-system-icu" >> .mozconfig
 %endif
+%ifarch s390 s390x
+echo "ac_add_options --disable-ion" >> .mozconfig
+%endif
+

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