# Create two directories for further comparison.
# RUN: rm -rf %t/dir1 %t/dir2
# RUN: mkdir -p %t/dir1 %t/dir2

# An extra directory in one of the directories, "diff -r" should fail.
# RUN: mkdir -p %t/dir1/extra_subdir
# RUN: diff -r %t/dir1 %t/dir2