#2642 runs with -r 1000 and no valgrind problems.  The problem is we must actually call fclose even when injecting errors in bad_fclose.  [t:2642] Refs #2642

git-svn-id: file:///svn/toku/tokudb@20487 c7de825b-a66e-492c-adef-691d508d4ae1