Tweak catch-uncommitted-output script for clarity, after review

.travis.yml

@@ -7,7 +7,7 @@ matrix:
     - CAN_DEPLOY=true
 before_install:
 - npm -g install npm@4
-script: ./automation/catch-uncommitted-output
+script: ./automation/catch-uncommitted-output.sh
 notifications:
   email: false
 deploy:

automation/catch-uncommitted-output

@@ -1,16 +0,0 @@
-#!/bin/sh
-set -e
-
-npm run build
-
-if ! git diff HEAD --exit-code ; then
-	echo '\n** Uncommitted changes found after build - FAIL **'
-	exit 1
-elif test -n "$(git ls-files --exclude-standard --others)" ; then
-	echo '\n** Untracked uncommitted files found after build: **'
-	git ls-files --exclude-standard --others
-	echo '** FAIL **'
-	exit 2
-else
-	echo '\nNo unexpected changes after build, all good.'
-fi

automation/catch-uncommitted-output.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+set -e
+
+npm run build
+echo
+
+if ! git diff HEAD --exit-code ; then
+	echo '** Uncommitted changes found after build - FAIL **'
+	exit 1
+elif test -n "$(git ls-files --exclude-standard --others | tee /dev/tty)" ; then
+	echo '** Untracked uncommitted files found after build (^^^ listed above ^^^) - FAIL **'
+	exit 2
+else
+	echo 'No unexpected changes after build, all good.'
+fi