a02c970eb0 qt, refactor: Revert explicit including QStringBuilder (Hennadii Stepanov)
3fd3a0fc87 qt, build: Optimize string concatenation (Hennadii Stepanov)
Pull request description:
From [Qt docs](https://doc.qt.io/qt-5/qstring.html#more-efficient-string-construction):
> ... multiple uses of the \[`QString`\] '+' operator usually means multiple memory allocations. When concatenating n substrings, where n > 2, there can be as many as n - 1 calls to the memory allocator.
With this PR
> ... the '+' will automatically be performed as the `QStringBuilder` '%' everywhere.
The change in the `src/Makefile.qt.include` file does not justify submitting this PR into the main repo, IMHO.
ACKs for top commit:
laanwj:
Code review ACK a02c970eb0
Talkless:
utACK a02c970eb0, built successfully on Debian Sid with Qt 5.15.2, but did not check if any displayed strings are "wrong" after refactoring.
jarolrod:
ACK a02c970eb0
Tree-SHA512: cbb476ee96f27c3bd6e125efab74d8bf24bbdb4c30576b3feea45e203405f3bf5b497dd7d3e11361fc825fcbf4b893b152921a9efdeaf73b42d1865d85f0ae84