Add comment about hidden files/directories, see
@@ -221,7 +221,8 @@ fn usage() -> HashMap<&'static str, Help> {
doc!(h, "hidden"
, "Search hidden files and directories"
, "Include hidden directories and files in the search results (default: hidden files \
- and directories are skipped).");
+ and directories are skipped). Files and directories are considered to be hidden if \
+ their name starts with a `.` sign (dot).");
doc!(h, "no-ignore"
, "Do not respect .(git|fd)ignore files"
, "Show search results from files and directories that would otherwise be ignored by \
