Problem *before* this patch: On macOS, KDevPlatform libs showed up like
this in otool -L:
.../libKDevPlatformUtil.10.dylib (compatibility version 10.0.0, current version 10.0.0)
Compare to KF5 libs:
.../libKF5ItemModels.5.dylib (compatibility version 5.0.0, current version 5.33.0)
We'd like to have '5.2.0' as 'current version' instead.
Note: This doesn't have an effect on the SONAME of the library, so
should be harmless from a packaging point of view