2020-03-14:   David Anderson 
    * findfuncbypc.c: do not call dwarf_dealloc on a 
      name that should not be dealloc'd (it is a static
      string from a .debug section ).
    * simplereader.c (resetsrcfiles): Only do dealloc
      calls on non-null pointers. 
2020-01-16:   David Anderson 
    * simplereader.c: Remove trailing whitespace (1 place).
