• CTFcreateMessageContinued can now be called without providing the multiline header.
• The 'current' multiline header is stored as a static variable in ctformatting.c.
• The functions CTFcreateMessage(Begin)(Loc) assign the multiline header.
• CTFcreateMessageEnd frees the multiline header and sets it to NULL.
• The CTFcreateMessageBegin functions call CTFcreateMessageContinued to parse remaining_lines instead of returning them unparsed.
• Updated tests for the changed behaviour.

• Fix wrong calls to CTIabort
• Potential fix to ignore -Wformat-zero-length in a few test cases.

• Runtime unit-tests (cuda/hwloc) are broken because of linking errors.
• Main.c now calls CTFinitialize.

• Fix @ being replaced with newlines in the multiline header.
• Fix @ being replaced with spaces instead of a newline in the first line header if cti-single-line is disabled.
• Add tests for replacing @ with \n or a space for the first line header.

In the previous commit, static const globals were defined in ctformatting.c, alongside getter functions.
The getters are not allowed, and lead to a hang.
The fix is to instead define the globals in the header file as macros.

• Move the default header formats from ctinfo.c to ctformatting.c
  ○ The getDefault functions now return a const reference to the default header.
• Move option consistency check for cti globals to ctformatting with CTFinitialize.
• Fix the test from last commit that was broken.
• Various improvements or tiny fixes to ctformatting.c

• Add CTFcheckHeaderConsistency to ctformatting.
• Add default headers to ctinfo and methods to retrieve copies of said headers.
• Set the default headers as default headers in globals.mac
• Add header consistency checks to OPTcheckOptionConsistency in options.c
  ○ Add warnings for conflicting cti settings.
• Add broken test to test-compile-time-formatting.cpp for CTFcreateMessageLoc.

• Add new files ctformatting.c, ctformatting.h and add them to CMakeLists.
• Add a rewrite of the ProcessMessage, loc2buf, and CTIfinalize functions to ctformatting.c.
  ○ Tests pending.
  ○ The functions are still present in ctinfo.c
• Add SBUFtruncate, SBUFinsertAfterToken, and related tests.
• Add != null debug asserts for all pointer arguments for SBUF functions.
• Add minor improvements to ctinfo.c