gallium/p_context.h: Make comment more readable

Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/include/pipe/p_context.h

@@ -162,7 +162,7 @@ struct pipe_context {
     *               item of that data to store (e.g. for
     *               PIPE_QUERY_PIPELINE_STATISTICS).
     *               When the index is -1, instead of the value of the query
-    *               the driver should instead write a 1/0 to the appropriate
+    *               the driver should instead write a 1 or 0 to the appropriate
     *               location with 1 meaning that the query result is available.
     */
    void (*get_query_result_resource)(struct pipe_context *pipe,