[PATCH] kbuild: signed char fixes for scripts

This time I did not break anything... and they shut up gcc4 ;)

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

scripts/conmakehash.c

@@ -33,7 +33,7 @@ void usage(char *argv0)
 
 int getunicode(char **p0)
 {
-  unsigned char *p = *p0;
+  char *p = *p0;
 
   while (*p == ' ' || *p == '\t')
     p++;