Use placeholder in 30 strings for easier translation
There are 30 strings in the translations that ends with " failed" which could possibly be turned into 1 string in the translations using a placeholder.
So instead of:
pa_ext_stream_restore_read() failed
pa_context_get_sink_info_by_index() failed
pa_context_get_source_info_by_index() failed
...
They could all use:
%s failed
One example: https://gitlab.freedesktop.org/pulseaudio/pavucontrol/blob/master/src/pavucontrol.cc#L246