libmetrics: aix: include definition for time()
libmetrics: aix: include definition for time()

metrics.c: In function 'boottime_func':
metrics.c:193: warning: implicit declaration of function 'time'


git-svn-id: 27e0aca8c7a52a9ae65dfba2e16879604119af8c@1413 93a4e39c-3214-0410-bb16-828d8e3bcd0f

fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia