lsar: add page; unar: update page (#12787)

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/common/lsar.md

@@ -0,0 +1,29 @@
+# lsar
+
+> List an archive file's contents.
+> See also: `unar`, `ar`.
+> More information: <https://manned.org/lsar>.
+
+- List an archive file's contents:
+
+`lsar {{path/to/archive}}`
+
+- List a password protected archive file's contents:
+
+`lsar {{path/to/archive}} --password {{password}}`
+
+- Print al[L] available information about each file in the archive (it's very long):
+
+`lsar {{-L|--verylong}} {{path/to/archive}}`
+
+- Test the integrity of the files in the archive (if possible):
+
+`lsar --test {{path/to/archive}}`
+
+- List the archive file's contents in JSON format:
+
+`lsar --json {{path/to/archive}}`
+
+- Display help:
+
+`lsar --help`