* fix a couple bugs in tr involving use of -c and/or -d flags -- see ChangeLog
* diagnose some improper or questionable invocations of csplit
* properly handle `echo |csplit - 1 1', rather than aborting
-* join without -t now ignores leading blanks
+* fix join: without -t it now ignores leading blanks
* sort accepts new option: -z for NUL terminated records
* join accepts new option: --ignore-case, -i
* uniq accepts new option: --ignore-case, -i