dummyssh: fix check-code nit

tests/dummyssh

@@ -1,24 +1,24 b''
 #!/usr/bin/env python
 
 import sys
 import os
 
 os.chdir(os.getenv('TESTTMP'))
 
 if sys.argv[1] != "user@dummy":
     sys.exit(-1)
 
 os.environ["SSH_CLIENT"] = "127.0.0.1 1 2"
 
 log = open("dummylog", "ab")
 log.write("Got arguments")
 for i, arg in enumerate(sys.argv[1:]):
-    log.write(" %d:%s" % (i+1, arg))
+    log.write(" %d:%s" % (i + 1, arg))
 log.write("\n")
 log.close()
 hgcmd = sys.argv[2]
 if os.name == 'nt':
     # hack to make simple unix single quote quoting work on windows
     hgcmd = hgcmd.replace("'", '"')
 r = os.system(hgcmd)
 sys.exit(bool(r))