[Toybox] [PATCH] Fix build when wchar_t is unsigned.

[enh]

  external/toybox/lib/linestack.c:84:5: error: conflicting types for
'crunch_str'
  int crunch_str(char **str, int width, FILE *out, char *escmore,
      ^
  external/toybox/lib/lib.h:228:5: note: previous declaration is here
  int crunch_str(char **str, int width, FILE *out, char *escmore,
      ^

I'm not sure whether the interface was intended to be wchar_t or int, but
switching to int is the smaller change...
---
 lib/lib.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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