[PATCH] S/390: Allow flag strings as part of cpu.

[Nick Clifton]

Hi Dominik,

>   enables extensions in the .machine pseudoop on
> S/390, e.g. ".machine zEC12+nohtm+vx"

Approved and applied.

I had to make one small change.  The gas function get_symbol_end() has 
been replaced by get_symbol_name() which has slightly different semantics.

Cheers
   Nick