* A comment in apropos.sh contains the misspelled word
"locailzed"; it should read "localized".
* The "test" operator can be a bit dangerous (e.g., if
a newbie writes a script named "test" and has it call
"apropos", which calls "test, ...).
* In its use as "whatis", apropos formats the first
line of the output differently than the following
lines. Specifically, it leaves out all but one of
the spaces that precede the dash in the first line.