Update cheatsheets

cupsreject

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# cupsreject
+
+> Reject jobs sent to printers.
+> Note: destination is referred as a printer or a class of printers.
+> See also: `cupsaccept`, `cupsenable`, `cupsdisable`, `lpstat`.
+> More information: <https://www.cups.org/doc/man-cupsaccept.html>.
+
+- Reject print jobs to the specified destinations:
+
+`cupsreject {{destination1 destination2 ...}}`
+
+- Specify a different server:
+
+`cupsreject -h {{server}} {{destination1 destination2 ...}}`
+
+- Specify a reason string ("Reason Unknown" by default):
+
+`cupsreject -r {{reason}} {{destination1 destination2 ...}}`