Fix Ruff linter issues

cvise.py

@@ -151,15 +151,14 @@ def get_available_cores():
 
 
 EPILOG_TEXT = (
-    """
+    f"""
 available shortcuts:
   S - skip execution of the current pass
   D - toggle --print-diff option
 
 For bug reporting instructions, please use:
-%s
+{CVise.Info.PACKAGE_URL}
 """
-    % CVise.Info.PACKAGE_URL
 )
 
 if __name__ == '__main__':
@@ -312,7 +311,7 @@ def get_available_cores():
         '--version',
         action='version',
         version=CVise.Info.PACKAGE_STRING
-        + (' (%s)' % CVise.Info.GIT_VERSION if CVise.Info.GIT_VERSION != 'unknown' else ''),
+        + (f' ({CVise.Info.GIT_VERSION})' if CVise.Info.GIT_VERSION != 'unknown' else ''),
     )
     parser.add_argument(
         '--commands',
@@ -450,7 +449,7 @@ def get_available_cores():
             script.write(f'#!/usr/bin/env {args.shell}\n\n')
             script.write(args.commands + '\n')
         os.chmod(script.name, 0o744)
-        logging.info('Using temporary interestingness test: %s' % script.name)
+        logging.info(f'Using temporary interestingness test: {script.name}')
         args.interestingness_test = script.name
 
     test_manager = testing.TestManager(

cvise/utils/testing.py

@@ -197,7 +197,7 @@ def __init__(
     def create_root(self):
         pass_name = str(self.current_pass).replace('::', '-')
         self.root = tempfile.mkdtemp(prefix=f'{self.TEMP_PREFIX}{pass_name}-')
-        logging.debug('Creating pass root folder: %s' % self.root)
+        logging.debug(f'Creating pass root folder: {self.root}')
 
     def remove_root(self):
         if not self.save_temps:
@@ -294,10 +294,10 @@ def report_pass_bug(self, test_env, problem):
             )
 
         with (crash_dir / 'PASS_BUG_INFO.TXT').open(mode='w') as info_file:
-            info_file.write('Package: %s\n' % CVise.Info.PACKAGE_STRING)
-            info_file.write('Git version: %s\n' % CVise.Info.GIT_VERSION)
-            info_file.write('LLVM version: %s\n' % CVise.Info.LLVM_VERSION)
-            info_file.write('System: %s\n' % str(platform.uname()))
+            info_file.write(f'Package: {CVise.Info.PACKAGE_STRING}\n')
+            info_file.write(f'Git version: {CVise.Info.GIT_VERSION}\n')
+            info_file.write(f'LLVM version: {CVise.Info.LLVM_VERSION}\n')
+            info_file.write(f'System: {str(platform.uname())}\n')
             info_file.write(PassBugError.MSG.format(self.current_pass, problem, test_env.state, crash_dir))
 
         if self.die_on_pass_bug:
@@ -345,7 +345,7 @@ def release_folders(self):
 
     @classmethod
     def log_key_event(cls, event):
-        logging.info('****** %s ******' % event)
+        logging.info(f'****** {event} ******')
 
     def kill_pid_queue(self):
         active_pids = set()