snapshot: support ip address literals, more docs - #403

control: job assigned to worker 01M4W967F7NT8AES6HNZ9QHT30 [factory aws, i-0cfe3336c3d57483a] (queued for 32 s)
...
task: starting task 0: "setup"
task: process exited: duration 17923 ms, exit code 0
...
task: starting task 1: "authentication"
task: process exited: duration 4 ms, exit code 0
...
task: starting task 2: "clone repository"
task: process exited: duration 1089 ms, exit code 0
...
task: starting task 3: "build"
...
|   inflating: /work/staging/swadm
| + for bin in dpd swadm
| + digest /work/staging/dpd
| + shasum -a 256 /work/staging/dpd
| + awk -F ' ' '{print $1}'
| + for bin in dpd swadm
| + digest /work/staging/swadm
| + shasum -a 256 /work/staging/swadm
| + awk -F ' ' '{print $1}'
| + mv /work/staging /work/macos-aarch64
task: process exited: duration 610684 ms, exit code 0
|W| found 4 output files
|W| uploading: /work/macos-aarch64/dpd (17766496 bytes)
|W| uploaded: /work/macos-aarch64/dpd
|W| uploading: /work/macos-aarch64/dpd.sha256.txt (65 bytes)
|W| uploaded: /work/macos-aarch64/dpd.sha256.txt
|W| uploading: /work/macos-aarch64/swadm (9488912 bytes)
|W| uploaded: /work/macos-aarch64/swadm
|W| uploading: /work/macos-aarch64/swadm.sha256.txt (65 bytes)
|W| uploaded: /work/macos-aarch64/swadm.sha256.txt