add flag clear_tag_comment to clear the tag comment

[superqtqt]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 85

• 31 of 35 (88.57%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+1.6%) to 73.585%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
main.go	0	4	0.0%

Totals
Change from base Build 84:	1.6%
Covered Lines:	156
Relevant Lines:	212

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💛 - Coveralls

[lrstanley]

Hello! Could you further explain the purpose/feature addition of the PR, and what problem it's trying to resolve? Is it similar to this feature request?

[superqtqt]

Hello! Could you further explain the purpose/feature addition of the PR, and what problem it's trying to resolve? Is it similar to this feature request?

yes, I just want to implement the feature. #48

[lrstanley]

@superqtqt it has been merged -- I've made some minor adjustments, including renaming the flag to -remote_tag_comment and some of the variables to be a bit more consistent and clear.