bin/withdraw: Lowercase `u' in `usage:', for consistency.

diff --git a/bin/withdraw b/bin/withdraw
index af47bc5..4f67086 100755 (executable)
--- a/bin/withdraw
+++ b/bin/withdraw
@@ -32,7 +32,7 @@ cd "$CERTROOT"
 
 ## Get the list of requests.
 if {[llength $argv] != 1} {
-  puts stderr "Usage: $QUIS REQID"
+  puts stderr "usage: $QUIS REQID"
   exit 1
 }
 lassign $argv reqid