diff --git a/configure.sh b/configure.sh
index 6b5c1930cd..2f36b4b749 100755
--- a/configure.sh
+++ b/configure.sh
@@ -1,6 +1,12 @@
 #!/bin/bash
 # Please run this script to configure the repository after cloning it.
 
+# When configuring with private repository, the following override hierarchy is used:
+# - commandline parameters - most specific, always wins.
+# - stdin parameters.
+# - saved repository - least specific, if present.
+# - fallback to opensource mode.
+
 # Stop on the first error.
 set -e -u
 
@@ -48,6 +54,7 @@ pwProjectId=A123456789012
 }
 
 setup_private() {
+  echo "Setting up private configuration: repo '$PRIVATE_REPO', branch '$PRIVATE_BRANCH'"
   if git clone --depth 1 --no-single-branch "$PRIVATE_REPO" "$TMP_REPO_DIR"; then
     echo "$PRIVATE_REPO" > "$SAVED_PRIVATE_REPO_FILE"
     echo "$PRIVATE_BRANCH" > "$SAVED_PRIVATE_BRANCH_FILE"
@@ -103,12 +110,12 @@ fi
 # TODO: Remove these lines when XCode project is finally generated by CMake. 
 if [ ! -d "$BASE_PATH/3party/boost/" ]; then
   echo "You need to have boost submodule present to run bootstrap.sh"
-  echo "Try to do 'git submodule update --init --recursive'"
+  echo "Try 'git submodule update --init --recursive'"
   exit 1
 fi
 if [ ! -d "$BASE_PATH/3party/boost/tools" ]; then
   echo "Boost's submodule tools is not present, but required for bootstrap"
-  echo "Try to do 'git submodule update --init --recursive'"
+  echo "Try 'git submodule update --init --recursive'"
   exit 1
 fi
 cd $BASE_PATH/3party/boost/