Fix splitting on various things other than LF causing exceptions in the grep output handling

irclog.py

@@ -935,7 +935,12 @@ class WebServer:
 		# Process grep output with --with-filenames, --null, and --line-number into (path, line) tuples.
 		# Lines are sorted by timestamp, filename, and line number to ensure a consistent and chronological order.
 		out = []
-		for line in stdout.decode('utf-8').splitlines():
+		# splitlines splits on more than desired, in particular also on various things that can occur within IRC messages (which is really anything except CR LF, basically).
+		# split has the downside of producing a final empty element (because stdout ends with LF) and an empty element when the input is empty.
+		# So just discard empty lines.
+		for line in stdout.decode('utf-8').split('\n'):
+			if line == '':
+				continue
 			fn, line = line.split('\0', 1)
 			assert fn.startswith(self.config['storage']['path'] + '/') and fn.count('/', len(self.config['storage']['path']) + 1) == 1
 			_, path, _ = fn.rsplit('/', 2)