added exception handler
Merge branch 'ssh-exeption-#15720' of https://github.com/ror6ax/salt into ror6ax-ssh-exeption-#15720

Conflicts:
	salt/client/ssh/__init__.py
Merge branch 'ror6ax-ssh-exeption-#15720' of https://github.com/thatch45/salt into thatch45-ror6ax-ssh-exeption-#15720

Conflicts:
	salt/client/ssh/__init__.py
Merge branch 'thatch45-ror6ax-ssh-exeption-#15720' into develop