Before:
    In order, the following would be built (use -v for more details):
     - Cabal-2.1.0.0 (lib) --enable-library-profiling (first run)

After:
    In order, the following would be built (use -v for more details):
     - Cabal-2.1.0.0 (lib) (first run)

Signed-off-by: Edward Z. Yang <ezyang@fb.com>