librpc/wsp: use unsigned char for high byte comparison

../../librpc/wsp/wsp_util.c:244:28: warning: result of comparison of constant 160 with expression of type 'char' is always false [-Wtautological-constant-out-of-range-compare]
  244 |                 if (strlen(t) == 1 && *t == 0xa0) {

Signed-off-by: Douglas Bagnall <[email protected]>
Reviewed-by: Volker Lendecke <[email protected]>

Author: douglasbagnall

librpc/wsp/wsp_util.c

@@ -241,7 +241,7 @@ static bool parse_properties_line(TALLOC_CTX *ctx,
 	for (pos = 0; pos < talloc_array_length(csv_line); pos++) {
 		t = strv_next(strv, t);
 		/* the scraped property file can have a non ascii char */
-		if (strlen(t) == 1 && *t == 0xa0) {
+		if (strlen(t) == 1 && *(unsigned char *)t == 0xa0) {
 			csv_line[pos] = talloc_strdup(csv_line,
 					"");
 		} else {