Make it possible to use subsecond granularity for the measurement intervals.
io,stat is updated to accept the interval to be specified with ms resolution.
Example
-z io,stat,0.001,smb
to generate 1ms statistics for all SMB traffic.
svn path=/trunk/; revision=7527
"rindex()" if you include <string.h>, and they're non-standard routines
(the ANSI C names for those functions are "strchr()" and "strrchr()").
svn path=/trunk/; revision=6538