* An element on GIT_CEILING_DIRECTORIES list that does not name the
real path to a directory (i.e. a symbolic link) could have caused
the GIT_DIR discovery logic to escape the ceiling.
* Command line completion for "tcsh" emitted an unwanted space
after completing a single directory name.
* Command line completion leaked an unnecessary error message while
looking for possible matches with paths in <tree-ish>.
* "git archive" did not record uncompressed size in the header when
streaming a zip archive, which confused some implementations of unzip.
* When users spelled "cc:" in lowercase in the fake "header" in the
trailer part, "git send-email" failed to pick up the addresses from
there. As e-mail headers field names are case insensitive, this
script should follow suit and treat "cc:" and "Cc:" the same way.
