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Fix a bug number in a comment.
In the distant past, all SourceForge projects use the same bug number space, so the bug numbers were very large.
That was changed so that all projects had their own bug number space, and the bugs were renumbered to be much smaller.
This change invaldiated any external reference to a bug number.

Fix a regression in is_freed() caused when NODETYPE was changed from a short to an enum.
The memset of 0xCC now changes type to 0xCCCCCCCC intsead of 0xCCCC.
This regression caused me not to notice a freed memory read that I had introduced in BITAND because it wasn't detected in debug builds.

Fix a typo in a comment

Automate the button clicks in SELECTBOXTEST.BADINPUT.RECOVERABLE.

Cleanup: Remove unused function integer_arg.

Refactoring: inline the last occurrence of integer_arg.
This is part of a larger effort to reduce the number of invisible side effects in the code base.

Refactoring: Replace the last remaining list_arg call with a call to validate_list_argument.
validate_list_argument doesn't modify the arguments list.
This is part of a larger effort to reduce the number of side effects in the code base.

Add test coverage that giving bad input to SELECTBOX is a recoverable error.
The tests were adapted from lput.lgo.
At this point, the tests require some manual intervention, but they will be automated later.

Refactoring: Rework lfput() so that it doesn't modify its arguments list.
This is part of a larger effort to reduce the number of side effects in the code base.

Add test coverage that giving bad input to FPUT is a recoverable error.
The tests were adapted from lput.lgo.