Christoph M. Becker d582241368 Fix #67325: imagetruecolortopalette: white is duplicated in palette ...

gdImageTrueColorToPalette() is sometimes wasteful by putting multiple white
color entries into the palette. This is caused by an obvious typo, where
to avoid a division by zero when `total` is zero, `count` is checked instead
of `total`.

We fix this issue to improve the quality of the color quantization.

Cf. <https://github.com/libgd/libgd/commit/24b4550f>

2016-09-03 19:50:42 +02:00

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