Comment 3 for bug 1928210

OK so we really have an open file leakage here.
This after ~500 successful conversions:

[...]
converted '/data/Music/Local/Scene/bitjam/bitjam_127/17-H0ffmann-Jay Step.mp3' to '/data/tmp/Music/Local/Scene/bitjam/bitjam_127/17-H0ffmann-Jay Step.m4a'
converted '/data/Music/Local/Scene/bitjam/bitjam_127/18-2irritated - hear me-Hear Me.mp3' to '/data/tmp/Music/Local/Scene/bitjam/bitjam_127/18-2irritated - hear me-Hear Me.m4a'
ERROR: gst-resource-error-quark: Could not open resource for writing. (6): /data/Music/Local/Scene/bitjam/bitjam_128.mp3
converted '/data/Music/Local/Scene/bitjam/bitjam_127/19-Vincenzo-Ancient Dreams.mp3' to '/data/tmp/Music/Local/Scene/bitjam/bitjam_127/19-Vincenzo-Ancient Dreams.m4a'
ERROR: gst-resource-error-quark: Could not open resource for writing. (6): /data/Music/Local/Scene/bitjam/bitjam_129.mp3
ERROR: gst-resource-error-quark: Could not open resource for reading. (5): /data/Music/Local/Scene/bitjam/bitjam_127/21-tEiS-Jingle (Outro).mp3
converted '/data/Music/Local/Scene/bitjam/bitjam_127/20-KEiTO (Unreleased)-Keep Praying.mp3' to '/data/tmp/Music/Local/Scene/bitjam/bitjam_127/20-KEiTO (Unreleased)-Keep Praying.m4a'
ERROR: gst-resource-error-quark: Could not open resource for writing. (6): /data/Music/Local/Scene/bitjam/bitjam_130.mp3
^C
(soundconverter:107694): GLib-ERROR **: 22:55:00.752: Creating pipes for GWakeup: Too many open files
^C^C./run: line 1: 107694 Trace/breakpoint trap (core dumped) soundconverter "$@"

But as sezanzeb noticed: we do not actually open read/write the files...