v2.0.4

What's new since Babeltrace 2.0.3?

This release contains a number of plug-in fixes and changes to build the project
on FreeBSD. It also fixes the build system to accommodate some breaking changes
introduced in Autoconf 2.70.

The full change log follows.

2021-02-23 Babeltrace 2.0.4 (National Banana Bread Day)

• Fix: macro name for "get supported mip versions method" attribute descriptor
• Fix: configure: support Autoconf 2.70
• port: add 'notext' keyword linker support
• port: fix compat/endian.h on FreeBSD
• port: tests: Add sys/wait.h include for FreeBSD
• port: namespace align.h with BT_ prefix
• port: Add sys/param.h include to compat/limits.h for FreeBSD
• port: disable debug-info by default on FreeBSD
• Fix: disable deprecation warnings for SWIG generated code
• port: 'ls --ignore=' is a GNU extension
• tests/lib/test_trace_ir_ref.c: rename user structure
• Fix: sink.ctf.fs: fix logic of make_unique_stream_file_name
• Fix: sink.ctf.fs: remove spurious directory level when using assume-single-trace
• Fix: bt2: _trim_docstring(): docstring can have 0 or 1 line
• Fix: ctf plugin: use element FC's alignment as array/seq. FC alignment
• Fix: source.ctf.lttng-live: muxing failure on clear (unit conversion)
• Fix: src.ctf.lttng-live: incomplete metadata packet is an error
• Fix: source.ctf.lttng-live: muxing failure on clear
• Fix: source.ctf.fs: 0-length packet index length causes SIGFPE
• Update working version to Babeltrace 2.0.4