saving uncommitted changes in /etc prior to emerge run

host.conf

@@ -0,0 +1,24 @@
+# /etc/host.conf:
+# $Header: /var/cvsroot/gentoo/src/patchsets/glibc/extra/etc/host.conf,v 1.1 2006/09/29 23:52:23 vapier Exp $
+
+# The  file /etc/host.conf contains configuration information specific to
+# the resolver library.  It should contain one configuration keyword  per
+# line,  followed by appropriate configuration information.  The keywords
+# recognized are order, trim, mdns, multi, nospoof, spoof, and reorder.
+
+
+
+# This keyword specifies how host lookups are to be performed. It
+# should be followed by one or more lookup methods, separated by
+# commas.  Valid methods are bind, hosts, and nis.
+#
+order hosts, bind
+
+
+# Valid  values are on and off.  If set to on, the resolv+ library
+# will return all valid addresses for a host that appears  in  the
+# /etc/hosts  file,  instead  of  only  the first.  This is off by
+# default, as it may cause a substantial performance loss at sites
+# with large hosts files.
+#
+multi on