ConfigWriter: Fix epydoc error
ConfigWriter: Fix epydoc error

The parameter is called “mods”, not “modes”.

Signed-off-by: Michael Hanselmann <68b67885ff74281219b4a4be33cc20fd45078d7c@google.com>
Reviewed-by: Andrea Spadaccini <92d490849ac1b40cd8e8878e4d94603bebdb089f@google.com>
(cherry picked from commit 1730d4a1ab56ef36d082b614d3d0ab13f3e14a85)

grnet/snf-ganeti,andir/ganeti,ganeti/ganeti,apyrgio/snf-ganeti,yiannist/ganeti,mbakke/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,bitemyapp/ganeti,dimara/ganeti,yiannist/ganeti,onponomarev/ganeti,ganeti/ganeti,apyrgio/ganeti,bitemyapp/ganeti,mbakke/ganeti,apyrgio/ganeti,leshchevds/ganeti,ganeti-github-testing/ganeti-test-1,mbakke/ganeti,leshchevds/ganeti,yiannist/ganeti,dimara/ganeti,onponomarev/ganeti,andir/ganeti,ganeti/ganeti,grnet/snf-ganeti,apyrgio/snf-ganeti,andir/ganeti