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

# Non-empty extra directory, "diff -r" should fail.
# RUN: mkdir -p %t/dir1/extra_subdir
# RUN: echo ZYX > %t/dir1/extra_subdir/extra_file
# RUN: diff -r %t/dir1 %t/dir2