[SAC] more spammer accounts

[Markus Neteler]

Hi Martin

(it would be great to enable a second person to quickly remove
spammers, currently trac is being bombed with spam!
See for example: https://trac.osgeo.org/grass/timeline )

I use this funny syntax which I found in previous emails:

+('amit932810085'),
+('dheeru55'),
+('dhiman'),
+('harsh145'),
+('keshav'),
+('kumartinkusingh08'),
+('kunjkn'),

PLEASE drop these spammers from our system!

thanks,
Markus