Fix typo preventing builds of ubuntu-core images.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.550) UNRELEASED; urgency=medium
+
+  * Fix typo preventing builds of ubuntu-core images.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Wed, 12 Dec 2018 15:09:28 +1300
+
 livecd-rootfs (2.549) disco; urgency=medium
 
   [ Tobias Koch ]

live-build/auto/build

@@ -23,7 +23,7 @@ PREFIX="livecd.$PROJECT${SUBARCH:+-$SUBARCH}"
 if [ "${IMAGEFORMAT:-}" = "ubuntu-image" ]; then
 	# Use ubuntu-image instead of live-build
 
-	if [ "$PROJECT" = "ubuntu-core"]; then
+	if [ "$PROJECT" = "ubuntu-core" ]; then
 		CHANNEL="${CHANNEL:-edge}"
 		env SNAPPY_STORE_NO_CDN=1 \
 		ubuntu-image snap -c "$CHANNEL" $UBUNTU_IMAGE_ARGS \