Fix e2e to avoid undef var

Author: thockin

test_e2e.sh

@@ -52,16 +52,6 @@ function assert_file_eq() {
     fail "file $1 does not contain '$2': $(cat $1)"
 }
 
-function finish() {
-  if [ $? -ne 0 ]; then
-    echo "The directory $DIR was not removed as it contains"\
-         "log files useful for debugging"
-    remove_sync_container
-  fi
-}
-
-trap finish INT EXIT
-
 # #####################
 # main
 # #####################
@@ -80,6 +70,16 @@ if [[ -z "$DIR" ]]; then
 fi
 echo "test root is $DIR"
 
+function finish() {
+  if [ $? -ne 0 ]; then
+    echo "The directory $DIR was not removed as it contains"\
+         "log files useful for debugging"
+    remove_sync_container
+  fi
+}
+
+trap finish INT EXIT
+
 CONTAINER_NAME=git-sync-$RANDOM
 function GIT_SYNC() {
     #./bin/linux_amd64/git-sync "$@"