Merge pull request #884 in CASA/casa from bugfix/CAS-12283 to master
* commit 'c3f94c667cc76425e3a8695bfba7233b9239816f':
Call to close() in the tbtool instance
Avoid casting from unsigned to signed, but rather the other way round
Fix comparison of dd columns
Add test to veify CAS-12283 is fixed
test_split2.py has been renamed to test_split.py
Move test_split2.py to test_split.py
Apply consistent space indentation
sorts the output DDI vector from MSSelection
Fix compiler warnings