+\n\
+Options:\n\
+\n\
+-h, --help Show this help text.\n\
+-v, --version Show program version number.\n\
+-u, --usage Show terse usage message.\n\
+-l, --list [ITEM...] List all the various names of things.\n\
+\n\
+-C, --name=NAME Select curve/DH-group/enc/hash name.\n\
+-b, --field-bits Field size for g-prime and rsa.\n\
+-q, --no-check Don't check field/group for validity.\n\
+-B, --group-bits Group size for g-prime; key size for ksched;\n\
+ data size for enc and hash.\n\
+-n, --factors=COUNT Number of factors for {exp,mul}-sim.\n\
+-i, --intervals=COUNT Number of intervals to run for. [0; forever]\n\
+-t, --time=TIME Length of an interval in seconds. [1]\n\