Fixes for warnings in FreeBSD build

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

miscutils/less.c

@@ -721,8 +721,8 @@ static void print_found(const char *line)
 	while (match_status == 0) {
 		char *new = xasprintf("%s%.*s"HIGHLIGHT"%.*s"NORMAL,
 				growline ? growline : "",
-				match_structs.rm_so, str,
-				match_structs.rm_eo - match_structs.rm_so,
+				(int)match_structs.rm_so, str,
+				(int)(match_structs.rm_eo - match_structs.rm_so),
 						str + match_structs.rm_so);
 		free(growline);
 		growline = new;