Feature request: CLI option to output password without newline?

I would like to request an option to output the password without the trailing newline. I have found a number of cases where the newline ends up being included as part of the password, such as the password file that the OpenLDAP clients can use (`-y `) and when piping into `pbcopy` on macos (to paste into a GUI dialog box).

I would even like to go so far as to request not only a parameter for the command line but to suggest that `os.isatty(sys.stdout.fileno())`(or something similar) be used to exclude the newline when stdout isn't the terminal. But this would be a breaking change, so such a change might not be feasible.

(I know that I can easily strip the newline in various ways, like `|tr -d '\n'`, but that is much less convenient.)

The issue does not name a file or test. Start by locating the keyring CLI entry point that writes passwords to stdout and inspect any existing CLI output tests. Done means a documented option produces the password without a trailing newline, with behavior for terminal and piped output matching the chosen specification.

Written by the indexing model from the issue text.