Rename _ssh_sock() to fix code style issue.

Since _ssh_sock is imported out of the git_command module, the leading
underscore should be removed from the function name.

git_command.py

@@ -30,7 +30,7 @@ LAST_CWD = None
 _ssh_proxy_path = None
 _ssh_sock_path = None
 
-def _ssh_sock(create=True):
+def ssh_sock(create=True):
   global _ssh_sock_path
   if _ssh_sock_path is None:
     if not create:
@@ -119,7 +119,7 @@ class GitCommand(object):
     if disable_editor:
       env['GIT_EDITOR'] = ':'
     if ssh_proxy:
-      env['REPO_SSH_SOCK'] = _ssh_sock()
+      env['REPO_SSH_SOCK'] = ssh_sock()
       env['GIT_SSH'] = _ssh_proxy()
 
     if project:

git_config.py

@@ -23,7 +23,7 @@ from signal import SIGTERM
 from urllib2 import urlopen, HTTPError
 from error import GitError, UploadError
 from trace import Trace
-from git_command import GitCommand, _ssh_sock
+from git_command import GitCommand, ssh_sock
 
 R_HEADS = 'refs/heads/'
 R_TAGS  = 'refs/tags/'
@@ -371,7 +371,7 @@ def _open_ssh(host, port):
     return False
 
   command = ['ssh',
-             '-o','ControlPath %s' % _ssh_sock(),
+             '-o','ControlPath %s' % ssh_sock(),
              '-p',str(port),
              '-M',
              '-N',
@@ -399,7 +399,7 @@ def close_ssh():
       pass
   _ssh_cache.clear()
 
-  d = _ssh_sock(create=False)
+  d = ssh_sock(create=False)
   if d:
     try:
       os.rmdir(os.path.dirname(d))