MISRA 2004 Rule 20.9: <stdio.h> shall not be used

  EWL_C/src/arm/assert_aeabi.c Line: 20
  EWL_C/src/assert.c Line: 24
  EWL_C/src/math_float.c Line: 34
  EWL_C/src/string.c Line: 53
  EWL_C/src/strtoul.c Line: 80
  EWL_C/src/time.c Line: 40
  EWL_C/src/wchar_io.c Line: 43
  EWL_C/src/wcstoul.c Line: 88
  EWL_C/src/wctype.c Line: 41
  EWL_C/src/wprintf.c Line: 42
  EWL_C/src/wprintformat.c Line: 29
  EWL_C/src/wscanf.c Line: 38
  EWL_C/src/wstring.c Line: 47
  EWL_C/src/wtime.c Line: 28