[Bug] Typo in logger call

[whatnick]

Describe the bug Typo in logger warning generation, causes code to error out when over-riding options in Search. https://github.com/asfadmin/Discovery-asf_search/blob/e7df54f24778a8f9864dac72149f9c45304c1443/asf_search/ASFSearchOptions/ASFSearchOptions.py#L117

To Reproduce

• Create ASFSearchOptions
• Override an already declared option using merge_args
• Trigger warning and code errors out due to typo

Expected behavior Warning is generated and code continues.

This sort of typo can be suppressed by pylint and other PyCQA tooling.