setup.py: Don't print empty include_dirs and library_dirs on "win32" because it's a lie
setup.py: Don't print empty include_dirs and library_dirs on "win32"
because it's a lie

thegooglecodearchive/pymssql,MunDaesik/pymssql,google-code-export/pymssql,thegooglecodearchive/pymssql,Alwnikrotikz/pymssql,MunDaesik/pymssql,AlanZatarain/pymssql,djhenderson/pymssql,djhenderson/pymssql,thegooglecodearchive/pymssql,MunDaesik/pymssql,Alwnikrotikz/pymssql,google-code-export/pymssql,Alwnikrotikz/pymssql,djhenderson/pymssql,AlanZatarain/pymssql,google-code-export/pymssql,AlanZatarain/pymssql