Fixed spelling error in comment

tools/python/CMakeLists.txt

@@ -16,7 +16,7 @@ endif()
 
 # To avoid dll hell, always link everything statically when compiling in
 # visual studio.  This way, the resulting library won't depend on a bunch
-# of other dll files and can be safely copied to someone elese's computer
+# of other dll files and can be safely copied to someone else's computer
 # and expected to run.
 if (MSVC)
     include(${CMAKE_CURRENT_LIST_DIR}/../../dlib/cmake_utils/tell_visual_studio_to_use_static_runtime.cmake)