wrc: Fix symbol was not declared and using plain integer as NULL pointer sparse warnings.

[Rob Shearman]

---
 tools/wrc/translation.c |    2 +-
 tools/wrc/utils.c       |    2 +-
 tools/wrc/wrc.c         |   48 +++++++++++++++++++++++-----------------------
 3 files changed, 26 insertions(+), 26 deletions(-)
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