Continue replacing missing headers

This commit was SVN r21108.

orte/mca/notifier/command/notifier_command_child.c

@@ -35,6 +35,9 @@
 #ifdef HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
 #include <ctype.h>
 #include <signal.h>