This update for spec-cleaner fixes the following issues:

- Update to 1.1.8 (boo#1099674):

  * Change libexecdir substitution to do /usr/libexec to %{_libexecdir}
  * Exclude apache_rex_check from bracketing
  * Add testscase for boolean dependencies that gets mangled currently
  * Do not remove -p0 from autosetup
  * Use %make_build if possible issue
  * Teach spec-cleaner to not break the %elif* macros added with
    rpm 4.15
  * Fixup the nested boolean dependencies
  * Fixup whitespace reported by flake8
  * Set explicit urllib timeout issue
  * Replace more stuff for %make build

This update was imported from the openSUSE:Leap:15.1:Update update project.