Update cheatsheets

tldr/linux/audit2why

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# audit2why
+
+> Explain SELinux denials from audit logs.
+> Part of the `policycoreutils-python-utils` package.
+> See also: `audit2allow`, `ausearch`, `sealert`.
+> More information: <https://manned.org/audit2why>.
+
+- Explain the most recent SELinux denial:
+
+`sudo audit2why`
+
+- Explain SELinux denials from a specific audit log file:
+
+`sudo audit2why {{[-i|--input]}} {{path/to/audit.log}}`
+
+- Explain all SELinux denials from the audit log:
+
+`sudo ausearch {{[-m|--message]}} avc | audit2why`
+
+- Explain denials for a specific service:
+
+`sudo ausearch {{[-m|--message]}} avc {{[-c|--comm]}} {{service_name}} | audit2why`