How do I prevent line wrapping in HSPICE output tables?
According to the HSPICE Quick Reference Guide posted at Harvard, there is a .WIDTHOUT card that you can use to set the number of columns in the output before linewrapping occurs:

.WIDTHOUT=132


Unfortunately it also says that the only choices are 80 or 132 columns, so if you're wrapping at 132 columns you might just have to reduce the number of nodes  output or use a binary format.

Remember that SPICE was developed in the days of punchcard i/o, and the .PRINT output is meant to actually be printed up on a lineprinter and read by eye.