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Friedrich W. H. Kossebau authored
Turn some sequences of x += ... statements (with x a QString) into a long chain of additions (for QStringBuilder) The power of QStringBuilder only sets in if more than two strings are concatenated before picking up the result as QString again (e.g. when assigning to a QString variable). There are some code parts where a lot of concatenating is done, but not in one expression, instead assigning the intermediate result to a QString var again and again, thus preventing the advantage of QStringBuilder. There are also a few places in the code where literal strings are concatenated using "+", instead of having the compiler concatenate them already. Patch optimizes the code in those two cases: by removing "+" between literal string and turning sequences of += into a chain of + REVIEW: 111595 thanks boud for review
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