History: misspellings

[Christophe Jarry]

Dear developers,

I read http://www.gnu.org/s/parallel/history.html today and I found the
following misspellings:

-"whitespace" in "Having pretty much had it with xargs, which is a
busted piece of crap due to its quoting/whitepsace problems, here is a
less featured but more robust one.".

-"make's" and "at this point" in "It also stressed makes dependency
calculation: At this point makes initialization would take O(n^2) time
on n independant targets, which was a real problem if you had 1000000
commandlines to run.".

-"replace" in "GNU parallel thus did not have one but two main
objectives: Replace xargs and run commands in parallel.".

-"xargs' treatment" in "In the years after 2005 I noticed that other
people still had problems with xargs's treatment of quotes and
whitespace, so I tried getting parallel accepted into GNU findutils.".

-"GNU tool, remote" in "Shortly after the release as GNU tool remote
execution was added and all missing options from xargs were added to
make it possible to use GNU parallel as a drop in replacement for xargs.

Please fix this,

Christophe