ref: c3ba64f6935322f09b6de5c2285544fd471c605d
dir: /sys/lib/postscript/prologues/dpost.ps/
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% Version 3.3.2 prologue for troff files.
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/#copies 1 store
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%
% A few arrays used to adjust reference points and character widths in some
% of the printer resident fonts. If square roots are too high try changing
% the lines describing /radical and /radicalex to,
%
% /radical [0 -75 550 0]
% /radicalex [-50 -75 500 0]
%
% Move braceleftbt a bit - default PostScript character is off a bit.
%
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/radical [0 0 550 0]
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/parenleftex [-20 -170 0 0]
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