pacinfo: add page (#18482)

Co-authored-by: Lena Pastwa <126529524+acuteenvy@users.noreply.github.com>

pages/linux/pacinfo.md

@@ -0,0 +1,28 @@
+# pacinfo
+
+> Display information about installed packages.
+> More information: <https://github.com/andrewgregory/pacutils/blob/master/doc/pacinfo.pod>.
+
+- Display information about a specific package:
+
+`pacinfo {{package_name}}`
+
+- Disable low-speed timeouts for downloads:
+
+`pacinfo --no-timeout {{package_name}}`
+
+- Display sizes in bytes and date values as Unix timestamps:
+
+`pacinfo --raw {{package_name}}`
+
+- Display additional package information:
+
+`pacinfo --verbose {{package_name}}`
+
+- Display help:
+
+`pacinfo --help`
+
+- Display version:
+
+`pacinfo --version`