The limit for the swap space is spelled 'swapsize', at least since
tcsh 6.17.00 import.

Submitted by:	Stefan Neudorf
PR:	bin/183480
MFC after:	1 week
Fix long line and record proper commit message for r257427:
Add the '-k' option for getopt() call and usage.

Submitted by:	Stefan Neudorf
PR:	bin/183494
MFC after:	1 week