* Remove redundant/unnecessary uses of $2
* Change a bunch of logic from negative to positive
* Use OPAL_VAR_SCOPE_PUSH/POP to help reduce env var usage
* Only use "" in test statements with strings that require sanitization
* Removed redundant AC_MSG_WARN/ERROR. There's now only one check at
the bottom for whether the component is "good" or not. We'll
AC_MSG_WARN/ERROR in that one location.
Thanks to Jeff Squyres for this patch.
This commit was SVN r30739.