Minor issues

[alandefreitas]

This PR fixes a number of smaller issues that accumulated over time.

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LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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An automated preview of the documentation is available at https://859.url.prtest2.cppalliance.org/libs/url/doc/html/index.html

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Antora version: an automated preview of the documentation is available at https://859.urlantora.prtest2.cppalliance.org/site/index.html

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GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.21%. Comparing base (4998971) to head (f33d51f).
Report is 8 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #859   +/-   ##
========================================
  Coverage    99.21%   99.21%           
========================================
  Files          157      157           
  Lines         8421     8421           
========================================
  Hits          8355     8355           
  Misses          66       66           

Files	Coverage Δ
include/boost/url/grammar/variant_rule.hpp	100.00% <ø> (ø)
include/boost/url/static_url.hpp	100.00% <ø> (ø)
include/boost/url/url.hpp	100.00% <100.00%> (ø)
include/boost/url/url_base.hpp	100.00% <ø> (ø)
src/url_base.cpp	99.63% <100.00%> (ø)

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[cppalliance-bot]

GCOVR code coverage report https://859.url.prtest2.cppalliance.org/gcovr/index.html
LCOV code coverage report https://859.url.prtest2.cppalliance.org/genhtml/index.html
Coverage Diff https://859.url.prtest2.cppalliance.org/gcovr/coverage_diff.txt