Previously, if a Host declaration or a value had trailing whitespace, that whitespace would have been included as part of the value. This led to unexpected consequences. For example:
Host example # A comment
HostName example.com # Another comment
Prior to version 1.2, the value for Host would have been "example " and the value for HostName would have been "example.com ". Both of these are unintuitive.
Instead, we strip the trailing whitespace in the configuration, which leads to more intuitive behavior.