Bug 795446 - On Windows there is a blank tip of the day

When the tip_of_the_day.list is created a new line is appended to the
list file and on Windows this causes a blank tip so remove the adding
of the extra line.

doc/CMakeLists.txt

@@ -44,8 +44,6 @@ FOREACH(line ${TIP_OF_THE_DAY_LINES})
   LIST(APPEND TOTD_OUTPUT "${line3}\n")
 ENDFOREACH()
 
-LIST(APPEND TOTD_OUTPUT "\n")
-
 STRING(CONCAT FINAL_TOTD ${TOTD_OUTPUT})
 
 FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/tip_of_the_day.list "${FINAL_TOTD}")