Declare line_without_comments as local and readonly

Author: Oliver Weiler

src/main/bash/sdkman-auto-env.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+#
+#   Copyright 2017 Marco Vermeulen
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+
+function cd() {
+	builtin cd "$@"
+
+	[[ -f ".sdkmanrc" ]] && sdk env		
+}

src/main/bash/sdkman-env.sh

@@ -76,7 +76,7 @@ function __sdkman_is_blank_line() {
 }
 
 function __sdkman_normalise() {
-	local line_without_comments="${1/\#*/}"
+	local -r line_without_comments="${1/\#*/}"
 
 	echo "${line_without_comments//[[:space:]]/}"
 }