main.go: Add a short version of the --date argument

Forgot to do this in 8d802bff08826523371ab5e951d85d0c0396ccc8.

Also, the reason why I made --description's short form `-m` is because I
wanted `-d` for date. The `-m` is supposed to be like "message", like in
git-commit.

1 files changed, 1 insertions, 0 deletions

diff --git a/main.go b/main.go
index 625f075..e655967 100644
--- a/main.go
+++ b/main.go
@@ -40,6 +40,7 @@ func main() {
 		Default("7").
 		Int()
 	date := kingpin.Flag("date", "Date when work was done (e.g. 2017-01-31)").
+		Short('d').
 		String()
 	description := kingpin.Flag("description", "Description of work.").
 		Short('m').