Fix a small file handle leak.
Fix a small file handle leak.

* subversion/libsvn_client/cat.c (svn_client_cat2): Close temporary file
  before returning.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion