Fix: Handle utf-8 decode errors when parsing commits

git.py

diff --git a/git.py b/git.py
index 505ff6c..7de1dd4 100644
--- a/git.py
+++ b/git.py
@@ -144,9 +144,12 @@
 def build_path_to_bug_list_map(git: Git, bug_fix_checker: BugFixChecker) -> PathToBugListMap:
     path_to_bug_lists = PathToBugListMap()
     for commit_hash in find_bug_fixes(git, bug_fix_checker):
-        commit = git.show(commit_hash)
-        paths = find_affected_files_in_commit(commit)
-        path_to_bug_lists.add_bug_to_paths(paths, commit_hash)
+        try:
+            commit = git.show(commit_hash)
+            paths = find_affected_files_in_commit(commit)
+            path_to_bug_lists.add_bug_to_paths(paths, commit_hash)
+        except UnicodeDecodeError as e:
+            logging.exception('Failed to show commit for %s, %s', commit_hash, e)
     return path_to_bug_lists
 
 def generate_path_to_bug_list(git: Git, path_to_bug_list_file: str, bug_fix_checker=UpstreamKernelBugFixChecker()) -> None: