[PATCH] Don't break 'make install-tools' if TOOLSDIR is same as BINDIR.

All,

This originated from one of my requirement where svn* binaries and tools
need to be installed in same location.
I'm not sure this one qualifies as a valid patch, because for this to
happen someone should tweaks Makefile.in
and points $bindir and $toolsdir to same location.

[[[
Don't break 'make install-tools' if TOOLSDIR is same as BINDIR.

* Makefile.in
   (INSTALL_EXTRA_TOOLS): Check that target and link_name are not the
    same before creating symlink to svnmucc in BINDIR.

Patch by: Alexander Thomas <alexander{_AT_}collab.net>
]]]

Thanks
-Alexander Thomas (AT)