STYLE: Remove trailing whitespaces

Change-Id: I7a14f1c6dbca8a16554214f6d666362c4f64fd8d
BUG: Fix memory leak in MetaImageIO after exception

See ITK-3186

Change-Id: Ia78caea1c140c93f209b8b8505d4b75a06ed39fb
Merge topic 'FixMetaIOMemoryLeak'

1b9cd2da BUG: Fix memory leak in MetaImageIO after exception
Merge topic 'UseSystem'

98797261 STYLE: Remove trailing whitespaces