ColorTheme doc bug

[Matthew Flaschen]

I'm experimenting with color themes, and found something that seems
non-intuitive.  The docs for color-theme-install say in part:

"If `color-theme-is-cumulative' is nil, a color theme will undo face and
frame-parameter settings of previous color themes."

However, the variable docs for color-theme-is-cumulative say "If
non-nil, installing a color theme will undo all settings made by
previous color themes."

These seem to be in contradiction.  One says nil causes undoing, the
other says non-nil (e.g. true) does.

Matt Flaschen