Update cheatsheets

tldr/linux/emaint

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# emaint
+
+> Perform Portage maintenance tasks.
+> More information: <https://wiki.gentoo.org/wiki/Portage#emaint>.
+
+- Synchronize repositories that are set to auto-sync (default for most repositories):
+
+`sudo emaint sync {{[-a|--auto]}}`
+
+- Synchronize a specific repository:
+
+`sudo emaint sync {{[-r|--repo]}} {{repository}}`
+
+- Clear the Portage resume list:
+
+`sudo emaint cleanresume {{[-f|--fix]}}`
+
+- Clean Portage logs:
+
+`sudo emaint logs {{[-C|--clean]}}`