Misc Minor Bugfixes

[TheTechromancer]

Fixes:

• https://github.com/blacklanternsecurity/bbot/issues/1411
• https://github.com/blacklanternsecurity/bbot/issues/1412
• https://github.com/blacklanternsecurity/bbot/issues/1415
• https://github.com/blacklanternsecurity/bbot/issues/1401

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 88.88889% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 92%. Comparing base (cf7fc00) to head (907f5ca). Report is 17 commits behind head on dev.

Files	Patch %	Lines
bbot/core/helpers/misc.py	91%	1 Missing :warning:
bbot/modules/iis_shortnames.py	75%	1 Missing :warning:
bbot/modules/report/asn.py	0%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## dev #1416 +/- ## ===================================== + Coverage 92% 92% +1% ===================================== Files 321 321 Lines 20660 20685 +25 ===================================== + Hits 18987 19013 +26 + Misses 1673 1672 -1 ```

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