Snippets for calibre 9.16.0 from Alpine x86_64

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-x86_64/testing/calibre/calibre-9.16.0-r0.log.

• ../../../../../src/calibre/gui2/progress_indicator/CalibreStyle.cpp:507:30: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
    507 |                     if (used < menuItem->rect.width()) {
        |                         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
  

• ../../../../../src/calibre/gui2/progress_indicator/CalibreStyle.cpp:504:26: warning: unused variable 'reverse' [-Wunused-variable]
    504 |                     bool reverse = menuItem->direction == Qt::RightToLeft;
        |                          ^~~~~~~