Update cheatsheets

git-send-email

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git send-email
+
+> Send a collection of patches as emails.
+> Patches can be specified as files, directions, or a revision list.
+> More information: <https://git-scm.com/docs/git-send-email>.
+
+- Send the last commit in the current branch:
+
+`git send-email -1`
+
+- Send a given commit:
+
+`git send-email -1 {{commit}}`
+
+- Send multiple (e.g. 10) commits in the current branch:
+
+`git send-email {{-10}}`
+
+- Send an introductory email message for the patch series:
+
+`git send-email -{{number_of_commits}} --compose`
+
+- Review and edit the email message for each patch you're about to send:
+
+`git send-email -{{number_of_commits}} --annotate`