Fix PostScript output of multiple charts.
[pspp] / tests / expressions /
drwxr-xr-x   ..
-rwxr-xr-x 7507 epoch.sh
-rwxr-xr-x 46162 expressions.sh
-rwxr-xr-x 1589 randist.sh
drwxr-xr-x - randist
-rwxr-xr-x 2464 variables.sh
-rwxr-xr-x 1827 vectors.sh