log-search: Handle ^C more gracefully.

scripts/log-search

@@ -4,6 +4,7 @@ import argparse
 import gzip
 import os
 import re
+import signal
 import sys
 from enum import Enum, auto
 from typing import Callable, TextIO
@@ -215,6 +216,7 @@ def main() -> None:
         raise RuntimeError(f"Can't parse {filter} as an IP or hostname.")
     assert filter_type is not None
 
+    try:
         for logfile_name in reversed(logfile_names):
             with maybe_gzip(logfile_name) as logfile:
                 for logline in logfile:
@@ -238,6 +240,8 @@ def main() -> None:
                             args,
                             filter_type=filter_type,
                         )
+    except KeyboardInterrupt:
+        sys.exit(signal.SIGINT + 128)
 
 
 def passes_filters(