INT-4481: Fix notice.txt line delimiters

CRLF->LF

Author: garyrussell

src/dist/notice.txt

@@ -1,11 +1,11 @@
-Spring Integration Framework ${version}
-Copyright (c) 2009-${copyright} Pivotal, Inc.
-
-This product is licensed to you under the Apache License, Version 2.0
-(the "License"). You may not use this product except in compliance with
-the License.
-
-This product may include a number of subcomponents with separate
-copyright notices and license terms. Your use of the source code for
-these subcomponents is subject to the terms and conditions of the
-subcomponent's license, as noted in the license.txt file.
+Spring Integration Framework ${version}
+Copyright (c) 2009-${copyright} Pivotal, Inc.
+
+This product is licensed to you under the Apache License, Version 2.0
+(the "License"). You may not use this product except in compliance with
+the License.
+
+This product may include a number of subcomponents with separate
+copyright notices and license terms. Your use of the source code for
+these subcomponents is subject to the terms and conditions of the
+subcomponent's license, as noted in the license.txt file.