*
* `argh`::
* token to explain the kind of argument this option wants. Keep it
- * homogenous across the repository.
+ * homogeneous across the repository.
*
* `help`::
* the short help associated to what the option does.
*
* `flags`::
* mask of parse_opt_option_flags.
- * PARSE_OPT_OPTARG: says that the argument is optionnal (not for BOOLEANs)
+ * PARSE_OPT_OPTARG: says that the argument is optional (not for BOOLEANs)
* PARSE_OPT_NOARG: says that this option takes no argument, for CALLBACKs
* PARSE_OPT_NONEG: says that this option cannot be negated
* PARSE_OPT_HIDDEN this option is skipped in the default usage, showed in