Version 2.2.3: Make failure to read a secret key for a writable log an
error instead of waiting for the first append to fail (this can be
turned off using gdp_open_info_set_no_skey_nonfatal, which causes
gdp_gin_open to return a warning instead of an error). Add a -S flag to...
Clean up exit statuses for apps to make it easier to use them in
Add -i flag to gdp-writer to ignore append errors.
Fix some minor formating problems in the gdp-writer.1 man page.
Add two new flags to gdp-writer: -q keeps the output quiet (good for
background tasks) and -1 writes the entire standard input as a single
record rather than one record per line.
Add -K flag to gdp-writer to choose a signing key.
Rename reader-test => gdp-reader and writer-test => gdp-writer. They
aren't test programs any more.