* NEWS, configure.ac: Bump version to 2.7.5.dev.

10 jobs for master
Status Job ID Name Coverage
  Build
canceled #48670
alpine-gcc

canceled #48671
arch-clang

canceled #48672
arch-gcc-glibcxxdebug

canceled #48669
debian-gcc-snapshot

canceled #48667
debian-stable-gcc

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debian-unstable-gcc-coverage

canceled #48675
debpkg-stable

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mingw-shared

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mingw-static

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rpm-pkg