cmd/time.c: Initialize 'repeatable' variable

We cannot leave this uninitialized, set it to 0.

Reported-by: Coverity (CID: 144426)
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/time.c b/cmd/time.c
index de57e3b..2cd8b1a 100644
--- a/cmd/time.c
+++ b/cmd/time.c
@@ -28,7 +28,7 @@
 {
 	ulong cycles = 0;
 	int retval = 0;
-	int repeatable;
+	int repeatable = 0;
 
 	if (argc == 1)
 		return CMD_RET_USAGE;