=== modified file 'debian/changelog'
--- debian/changelog	2016-02-24 09:16:49 +0000
+++ debian/changelog	2016-02-24 14:58:54 +0000
@@ -4,6 +4,8 @@
   * ubiquity/upower.py: Actually specify the correct D-Bus interface name
     instead of the object path name when querying the OnBattery property.
     (LP: #1547956)
+  * debian/rules: Build under C.UTF-8 locale. grep 2.23 does not get along
+    with 'C' any more and causes broken debconf templates to be built.
 
  -- Martin Pitt <martin.pitt@ubuntu.com>  Wed, 24 Feb 2016 10:15:12 +0100
 

=== modified file 'debian/rules'
--- debian/rules	2015-06-04 14:34:02 +0000
+++ debian/rules	2016-02-24 14:58:13 +0000
@@ -4,6 +4,7 @@
 #export DH_VERBOSE=1
 
 export DH_OPTIONS
+export LC_ALL=C.UTF-8
 
 VERSION := $(shell dpkg-parsechangelog | awk '/^Version:/ { print $$2 }')
 EXPECTED_AC_VERSION := $(shell echo "$(VERSION)" | cut -d. -f1,2)