I found the typo in Compare.cpp and fixed it.
Old...
185. ::MessageBox(nppData._nppHandle,TEXT("Can't locate SVN
information"),TEXT("File Not Fount"),MB_OK);
New...
185. ::MessageBox(nppData._nppHandle,TEXT("Can't locate SVN
information"),TEXT("File Not Found"),MB_OK);
Patch for a simple typo on line 185 of Compare.cpp