Hot fix two test regressions (%T vs %t)
Different Unix "errno" values are returned for the following scenarios:
$ echo test > /tmp/existingFile/impossibleDir/impossibleFile
"Not a directory"
$ echo test > /tmp/nonexistentDir/impossibleFile
"No such file or directory"
This fixes the regression introduced by r352971 / D57592.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@352996 91177308-0d34-0410-b5e6-96231b3b80d8