Invalid condition in WithContext method.

[tep]

Since non-pointer receivers are passed by value, once the receiver for WithContext was reverted to a non-pointer, this condition is guaranteed to always be false.

In other words, the receiver (l) is a copy of the Logger struct from the caller and its address can never be the same as the logger attached to the Context.

Either the receiver should be converted back to a pointer (and different fixes devised for #116 and #400) -- or, this condition should simply be removed and the docs updated to say that the Context will always be replaced no matter what (because that's the actual behavior with the current logic).

[Here's a Go Playground link proving that non-pointer receivers have different addresses from those of their caller]

[rs]

This is a regression from this commit: 588a61c

[rs]

Perhaps we should remove the condition altogether.

[tep]

That's what I'd originally done in PR #499 but then changed it to add back a similar condition using reflect.DeepEqual but, I can always pull it out again.

[rs]

Ok, I'll prefer removing the condition then.

[tep]

Done.

#499 should be ready to go.