K 10 svn:author V 3 pfg K 8 svn:date V 27 2013-08-01T16:04:48.366329Z K 7 svn:log V 283 Add license for the half MD4 algorithm used in ext2_half_md4(). The htree implementation uses code derived from the RSA Data Security, Inc. MD4 Message-Digest Algorithm. Add a proper licensing statement for the code and clarify the corresponding comments. Approved by: core (hrs) END