plugins declaration, blank space error

[gabbork]

Using the 'plugins' option as a comma separated list, now you have to pay attention to blank spaces.

For example:
plugins = python273, router_rewrite
is incorrect, cause looks for " router_rewrite" starting with the blank space.

You should write
plugins = python273,router_rewrite without any blank space after the comma.

I think this behavior is not really user friendly and both declarations should be valid.