[solved] Add negative negative offset to geometry option

[broucaries]

From debian bug http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=462759

Some x11 geometry formats for specifying window geometry (i.e. for the -geometry switch) are not supported, for example one cnanot offset
the top left corner negatively:

animage -geometry +-4+-4 xxx.gif
animate: invalid argument for option `+-4+-4': -geometry.

or positively from the lower right:

animate -geometry --4--4 xxx.gif
animate: invalid argument for option `--4--4': -geometry.


If you decide that it is a wont't fix, please correct the wording of the geometry option documentation, that is misleading, for user

<< -geometry widthxheight{+-}x{+-}y

If the x is negative, the offset is measured leftward from the right edge of
the screen to the right edge of the image being displayed.>>

This still claims that x can be negative (which would make sense, as X
geometry specifications allow that, too).
This is likely a documentation bug, though, as was meant is that
"{+-}x" is "negative", even when x is positive.


Regards

Bastien

[magick]

We can reproduce this problem and have a patch. Look for it when ImageMagick 6.4.8-0 is released.