On the log-message-templates branch, fix several crashes.

* subversion/svn/copy-cmd.c
  (svn_cl__copy): Fully convert to log_msg_func4.

* subversion/svn/delete-cmd.c
   (svn_cl__delete): Fully convert to log_msg_func4. 

* subversion/svn/mkdir-cmd.c
  (svn_cl__mkdir): Fully convert to log_msg_func4. 

* subversion/svn/move-cmd.c
  (svn_cl__move): Fully convert to log_msg_func4. 

* subversion/svn/propedit-cmd.c
  (svn_cl__propedit): Fully convert to log_msg_func4. 


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/log-message-templates@1622707 13f79535-47bb-0310-9956-ffa450edef68