gdb pretty printer for SwNodes fails on Python 3 due to "unicode"
gdb pretty printer for SwNodes fails on Python 3 due to "unicode"

Change-Id: I8e4983a91d4f97a2a20fbeed89d4e0f186c35fad

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core