import: allow milliseconds in run log time stamps

importexp

@@ -174,7 +174,7 @@ cd '$WORK_DIR'
 
     echo "Generating configuration" >&2
 
-    eval "$(perl -lne '/^(?:\d{4,}-\d\d-\d\dT\d\d:\d\d:\d\d:\ )?\+\ \s*(
+    eval "$(perl -lne '/^(?:\d{4,}-\d\d-\d\dT\d\d:\d\d:\d\d(?:.\d+)?:\ )?\+\ \s*(
         EXPNAME|
         (?:start|end|initial|final)_date|
         restart_interval|