Fixes an issure where the first part of an object file name is not
included, due to matching the rule for a section entry previously.
Reduce depedency on matching literal strings in sections which might
change depending on toolchain (ex. matching 'elf32-xtensa-le')
Make sure parsing rule succeeds for the entirety of the sections info
string by adding 'parseAll=True'.
Add test for sections info parsing.
