Multiple style fixes

libagent/gpg/__init__.py

@@ -18,6 +18,7 @@ import subprocess
 import sys
 import time
 
+import daemon
 import pkg_resources
 import semver
 

libagent/gpg/keyring.py

@@ -222,7 +222,7 @@ def gpg_version(sp=subprocess):
     """Get a keygrip of the primary GPG key of the specified user."""
     args = gpg_command(['--version'])
     output = check_output(args=args, sp=sp)
-    line = output.split(b'\n')[0]  # b'gpg (GnuPG) 2.1.11'
+    line = output.split(b'\n', maxsplit=1)[0]  # b'gpg (GnuPG) 2.1.11'
     line = line.split(b' ')[-1]  # b'2.1.11'
     line = line.split(b'-')[0]  # remove trailing version parts
     return line.split(b'v')[-1]  # remove 'v' prefix