Problem: podman output has extra newlines

This makes output less pretty.

Solution: strip the output

lib/pgpm/podman.rb

@@ -8,7 +8,7 @@ module Pgpm
   module Podman
     def self.run(command, unhandled_reboot_mitigation: true, print_stdout: true)
       result = TTY::Command.new(printer: :null).run("podman #{command}", pty: true) do |out, err|
-        warn out if print_stdout
+        $stderr.print(out.strip) if print_stdout
         warn err
       end