* Add new macros with variable number of arguments.
- in xbt/log.h: XBT_DEBUG, XBT_VERB, XBT_INFO, etc.
- in xbt/cunit.h: xbt_test_{add,fail,assert,log}
* Add new macros with variable number of arguments.
- in xbt/log.h: XBT_DEBUG, XBT_VERB, XBT_INFO, etc.
- in xbt/cunit.h: xbt_test_{add,fail,assert,log}