version: fix version output for "go run"

Before (note attempted use of absent date and commit hash):

"short": "1.37.0-dev",
"long": "1.37.0-dev-t",

After:

"short": "1.37.0-ERR-BuildInfo",
"long": "1.37.0-ERR-BuildInfo",

Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f