Move pages under tldr, lint run.sh, update docs

tldr/linux/coredumpctl

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# coredumpctl
+
+> Retrieve and process saved core dumps and metadata.
+> More information: <https://www.freedesktop.org/software/systemd/man/coredumpctl.html>.
+
+- List all captured core dumps:
+
+`coredumpctl list`
+
+- List captured core dumps for a program:
+
+`coredumpctl list {{program}}`
+
+- Show information about the core dumps matching a program with `PID`:
+
+`coredumpctl info {{PID}}`
+
+- Invoke debugger using the last core dump of a program:
+
+`coredumpctl debug {{program}}`
+
+- Extract the last core dump of a program to a file:
+
+`coredumpctl --output={{path/to/file}} dump {{program}}`