Support SCHED_IDLE in schedfromstr

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/python-schedutils/schedutils.c b/python-schedutils/schedutils.c
index cb46b2d..65f1da7 100644
--- a/python-schedutils/schedutils.c
+++ b/python-schedutils/schedutils.c
@@ -280,6 +280,8 @@
 		scheduler = SCHED_FIFO;
 	else if (strcmp(s, "SCHED_BATCH") == 0)
 		scheduler = SCHED_BATCH;
+	else if (strcmp(s, "SCHED_IDLE") == 0)
+		scheduler = SCHED_IDLE;
 	else {
 		PyErr_SetString(PyExc_OSError, "Unknown scheduler");
 		return NULL;