st_draw: pass -f to st_show

This allows it to work with traces that did not include a system
release.

1 files changed, 4 insertions, 4 deletions

diff --git a/st_draw b/st_draw
index e12139a..54cf262 100755
--- a/st_draw
+++ b/st_draw
@@ -76,9 +76,9 @@ LITMUS^RT Schedule Drawing Utility
 
 Usage: st_draw [OPTIONS] <sched trace file>*
 
-Options:        
+Options:
         -f FROM
-        --from FROM     Start at time FROM. 
+        --from FROM     Start at time FROM.
                         Time of system release if not specified.
 
         -l LENGTH
@@ -96,7 +96,7 @@ Options:
         --keep          Keep the generated .asy/.pdf files.
 
         --no-show       Don't start a PDF document viewer.
-        
+
         -h
         --help          Show this message and exit.
 EOF
@@ -124,7 +124,7 @@ fi
 if [ -z "$FROM" ]
 then
     info "Searching for task system release..."
-    FROM=`$ST_SHOW -r $TRACES | sed 's/\.[0-9]*ms//'`
+    FROM=`$ST_SHOW -r -f $TRACES | sed 's/\.[0-9]*ms//'`
     if [ -z "$FROM" ]
     then
         die "No task system release found in trace."