Resolve issue #965:
Resolve issue #965:

* Makefile.in: Uses spaces, not tabs, to align all continuation lines.
  Also, put all backslashes for the same shell in the same column.

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