Fix typo in test file

tests/test_fill_sack_from_repos_in_cache.py

@@ -213,7 +213,7 @@ def test_exception_with_checksum_mismatch_and_only_repomd(self):
  self.assertRaises(dnf.exceptions.RepoError,
  self.test_base.fill_sack_from_repos_in_cache, load_system_repo=False)
 
- def test_checksum_mistmatch_regenerates_solv(self):
+ def test_checksum_mismatch_regenerates_solv(self):
  self._setUp_from_repo_path(os.path.join(os.path.abspath(os.path.dirname(__file__)), "repos/rpm"))
  self._create_cache_for_repo(os.path.join(os.path.abspath(os.path.dirname(__file__)), "repos/drpm"),
  self.tmpdir, "drpm-repo")
@@ -223,7 +223,7 @@ def test_checksum_mistmatch_regenerates_solv(self):
  os.path.join(self.tmpdir, "cache/test-repo.solv"))
 
  # Now we only have cache with solvx, mismatching solv file and xml metadata.
- # Checksum mistmatch causes regeneration of solv file and repo works.
+ # Checksum mismatch causes regeneration of solv file and repo works.
 
  self.test_base.fill_sack_from_repos_in_cache(load_system_repo=False)