pickrand.py: fix off-by-one

Signed-off-by: Colin McCabe <colin.mccabe@dreamhost.com>

diff --git a/pickrand.py b/pickrand.py
index 8253e74..9efec59 100755 (executable)
--- a/pickrand.py
+++ b/pickrand.py
@@ -12,6 +12,6 @@ for root, dirs, files in os.walk(".", followlinks=True):
 if (len(allfiles) == 0):
    sys.exit(1)
 random.seed(None)
-r = random.randint(0,len(allfiles)) 
+r = random.randint(0,len(allfiles) - 1)
 print(allfiles[r])
 sys.exit(0)