support sprintf("v%v", v1.2.3) (works on any string argument, in
[p5sagit/p5-mst-13.2.git] / eg / van /
drwxr-xr-x ..
-rw-r--r-- empty
-rw-r--r-- unvanish
-rw-r--r-- vanexp
-rw-r--r-- vanish