usttrace: add nanoseconds to traceset directory name

Without this, the test scripts may create two traces simultaneously,
resulting in two sets of traces in the same directory

diff --git a/usttrace b/usttrace
index b14b4a9cd08ef9adfd911c84fd6b48c4126aae60..b28a8d018609e4a80bec867afac0e34c6d81a7f7 100755 (executable)
--- a/usttrace
+++ b/usttrace
@@ -96,7 +96,7 @@ then
 fi
 
 # Create directory for trace output
-DATESTRING="$(hostname)-$(date +%Y%m%d%H%M%S)"
+DATESTRING="$(hostname)-$(date +%Y%m%d%H%M%S%N)"
 OUTDIR="$BASE_TRACE_DIR/$DATESTRING"
 mkdir -p "$OUTDIR"