input.xml: Re-align whitespace
input.xml: Re-align whitespace

Use 4 positions for indenting, and use tabs to save space.

Change-Id: Ic65bb0eb99c41b240dd115aff34d5dd32706233a
Reviewed-by: Dave Reeve <6a84ee3ae0690d4584b99406fb3076392171f50e@morganstanley.com>

guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon,guillaume-philippon/aquilon,quattor/aquilon