[Tor Trac #31408] Fix bug when %including folder with comment only files. #31408

[Jigsaw52]

When processing a %included folder, a bug caused the pointer to
the last element of the options list to be set to NULL when
processing a file with only comments or whitepace. This could
cause options from other files on the same folder to be
discarded depending on the lines after the affected %include.

[coveralls]

Pull Request Test Coverage Report for Build 6329

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.0004%) to 63.361%

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Files with Coverage Reduction	New Missed Lines	%
src/feature/hs/hs_common.c	1	85.28%

Totals
Change from base Build 6312:	-0.0004%
Covered Lines:	47955
Relevant Lines:	75685

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💛 - Coveralls