Move nss module earlier on hosts: line

Before the initroduction of nss-resolve, putting mdns before dns was equivalent
to putting it after files, since there wasn't anything inbetween. But when systemd
is installed first we get:
  hosts: files resolve [!UNAVAIL=return] myhostname dns
which the existing scriptlet here would modify to:
  hosts: files resolve [!UNAVAIL=return] myhostname mdns4_minimal [NOTFOUND=return] dns
but we really want:
  hosts: files myhostname mdns4_minimal [NOTFOUND=return] resolve [!UNAVAIL=return] dns
so mdns4 has higher priority than resolve.

This applies to F33 and rawhide.

nss-mdns.spec

@@ -1,6 +1,6 @@
 Name: nss-mdns
 Version: 0.14.1
-Release: 8%{?dist}
+Release: 9%{?dist}
 Summary: glibc plugin for .local name resolution
 
 License: LGPLv2+
@@ -44,11 +44,11 @@ rm -rf $RPM_BUILD_ROOT
 function mod_nss() {
     if [ -f "$1" ] ; then
         # sed-fu to add mdns4_minimal to the hosts line of /etc/nsswitch.conf
-	    sed -i.bak '
-		    /^hosts:/ !b
-    		/\<mdns\(4\|6\)\?\(_minimal\)\?\>/ b
-    		s/\([[:blank:]]\+\)dns\>/\1mdns4_minimal [NOTFOUND=return] dns/g
-    		' "$1"
+        sed -i.bak '
+                /^hosts:/ !b
+            /\<mdns\(4\|6\)\?\(_minimal\)\?\>/ b
+            s/\<files\([[:blank:]]\+\)/files\1mdns4_minimal [NOTFOUND=return] /g
+            ' "$1"
     fi
 }
 
@@ -97,6 +97,10 @@ fi
 
 
 %changelog
+* Wed Sep  2 2020 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 0.14.1-9
+- Place 'mdns4_minimal' in /etc/nsswitch.conf after 'files' in /etc/nsswitch.conf,
+  so that it ends up before 'resolve' (#1867830)
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.14.1-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild