scripts/db in rvm-0.1.27 vs scripts/db in rvm-0.1.29

@@ -5,16 +5,16 @@
   if [[ ! -f "$database_file" ]] ; then
     mkdir -p $(dirname $database_file)
     touch $database_file
   fi
 else
-  echo "usage: $0 database key [value]"
+  echo "Database file $1 does not exist." >&2
   exit 1
 fi
 
 key="$1" ; shift
 if [[ -z "$key" ]] ; then
-  echo "usage: $0 database key [value]"
+  echo "usage: $0 database key [value]" >&2
   exit 1
 else
   value="$*"
   if [[ "unset" = "$value" ]] || [[ "delete" = "$value" ]] ; then
     sed -i.tmp "s#^$key=.*\$##" $database_file