add documentation for get_pty param in SSHClient.exec_command()

paramiko/client.py

@@ -463,6 +463,9 @@ def exec_command(
             Python
         :param int timeout:
             set command's channel timeout. See `.Channel.settimeout`
+        :param bool get_pty:
+            Request a pseudo-terminal from the server (default ``False``).
+            See `Channel.get_pty`
         :param dict environment:
             a dict of shell environment variables, to be merged into the
             default environment that the remote command executes within.