The transform tool should have some options, like perspective, free transform, skew and distort. It is mostly used to correct architecture or straighten and/or distort a point of view, horizon, etc. It will slightly stretch the image, but in this case, it would not be noticeable because it so small. But lets say you stretched and made your main subject to wide or buildings too wide, you would then stretch the top or bottom side to correct the subject. The nice thing about this tool is that the parameters (size of file) will remain the same and you don't have to recompose or recrop the image.
JR