add time.h include to avoid warning

diff --git a/lustre/tests/multiop.c b/lustre/tests/multiop.c
index 871ac95..e8868be 100755 (executable)
--- a/lustre/tests/multiop.c
+++ b/lustre/tests/multiop.c
@@ -51,6 +51,7 @@
 #include <unistd.h>
 #include <semaphore.h>
 #include <lustre/liblustreapi.h>
+#include <time.h>
 
 #define T1 "write data before unlink\n"
 #define T2 "write data after unlink\n"