Avoid ChangeLog erasing in tarball release

Execute a make clean into a rt-tests directory, exploded from a tarball,
cause erroneous erasing of the ChangeLog file. Let make do it only if it
executes under git tree.

Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Clark Williams <williams@redhat.com>
1 file changed
tree: 1f46d9b5e95d0702cca8f74b5100944a2a0ef7b5
  1. src/
  2. .gitignore
  3. COPYING
  4. Makefile
  5. rt-tests.spec-in