After code study, we've decided that additional blocks do add 32 octets,
not 16, despite messages to the contrary in the archives.
have names that are 15 octets or less in length. A name that is 15 octets
long requires the use of only one block in the directory. Additional
sequential blocks are required to store entries with names that are longer
-than 15 octets. Each additional block provides an additional length of 16
+than 15 octets. Each additional block provides an additional length of 32
octets for the name of the entry. Note that if file names use an encoding
like UTF-8, a single character may be encoded into multiple octets.