- The default ignores hidden files, those that start with a period or
- hyphen‐minus, and those which contain a pipe, buck, percent,
- bracket, hash, asterisk, eroteme, semi, or colon.
+ The default ignores files that start with a period or hyphen‐minus,
+ those which end with a cloparen, and those which contain a hash,
+ buck, percent, asterisk, colon, semi, eroteme, bracket, backslash,
+ or pipe.
+
+- **`EXTRAFINDRULES`:**
+ The value of this variable is appended to `FINDRULES` by default, to
+ enable additional rules without overriding the existing ones.