Update cheatsheets

git-prune

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git prune
+
+> Git command for pruning all unreachable objects from the object database.
+> This command is often not used directly but as an internal command that is used by Git gc.
+> More information: <https://git-scm.com/docs/git-prune>.
+
+- Report what would be removed by Git prune without removing it:
+
+`git prune --dry-run`
+
+- Prune unreachable objects and display what has been pruned to `stdout`:
+
+`git prune --verbose`
+
+- Prune unreachable objects while showing progress:
+
+`git prune --progress`