This final cset is to fix a syntax problem in ha_myisammrg.cc where a / was left out of a format string.
It also adds a check in has_path to avoid a possible redundant comparison.

ha_myisammrg.cc:
  Replaced missing / in format string
my_getwd.c:
  Added test to see if FN_LIBCHAR != '/' before doing comparison to avoid redundant comparison