Follow up to r27668 with fix to C declaration placement.
Follow up to r27668 with fix to C declaration placement.

* subversion/svn/diff-cmd.c
  (svn_cl__diff):
    Declare sb before any statements.

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