Update s3-functions

Was getting a strange error due to these line:

```
[mike@localhost failmode .bash-my-aws (master)]$ bma bucket-objects bash-my-bucket
/home/m/.bash-my-aws/lib/s3-functions: line 59: : command not found
/home/m/.bash-my-aws/lib/s3-functions: line 66: : command not found
```

Author: mbailey

lib/s3-functions

@@ -56,17 +56,17 @@ bucket-acls() {
 }
 
 bucket-objects() {
-
+
   # List of S3 Bucket Objects.
   #
   #     $ bucket-objects example-bucket
   #     object-key         last-modified storage-class owner-display-name etag size
   #     another-object-key last-modified storage-class owner-display-name etag size
   #
-
+  
   local buckets=$(skim-stdin "$@")
   [[ -z "$buckets" ]] && __bma_usage "bucket [bucket]" && return 1
-
+  
   local bucket
   for bucket in $buckets; do
     aws s3api list-objects \